Collaboration diagram for Mail_RFC822:

Public Member Functions
	Mail_RFC822 ($address=null, $default_domain=null, $nest_groups=null, $validate=null, $limit=null)
	Sets up the object.
	parseAddressList ($address=null, $default_domain=null, $nest_groups=null, $validate=null, $limit=null)
	Starts the whole process.
	_splitAddresses ($address)
	Splits an address into separate addresses.
	_isGroup ($address)
	Checks for a group at the start of the string.
	_splitCheck ($parts, $char)
	A common function that will check an exploded string.
	_hasUnclosedQuotes ($string)
	Checks if a string has unclosed quotes or not.
	_hasUnclosedBrackets ($string, $chars)
	Checks if a string has an unclosed brackets or not.
	_hasUnclosedBracketsSub ($string, &$num, $char)
	Sub function that is used only by hasUnclosedBrackets().
	_validateAddress ($address)
	Function to begin checking the address.
	_validatePhrase ($phrase)
	Function to validate a phrase.
	_validateAtom ($atom)
	Function to validate an atom which from rfc822 is: atom = 1*<any CHAR except specials, SPACE and CTLs>
	_validateQuotedString ($qstring)
	Function to validate quoted string, which is: quoted-string = <"> *(qtext/quoted-pair) <">
	validateMailbox (&$mailbox)
	Function to validate a mailbox, which is: mailbox = addr-spec ; simple address / phrase route-addr ; name and route-addr.
	_validateRouteAddr ($route_addr)
	This function validates a route-addr which is: route-addr = "<" [route] addr-spec ">".
	_validateRoute ($route)
	Function to validate a route, which is: route = 1#("@" domain) ":".
	_validateDomain ($domain)
	Function to validate a domain, though this is not quite what you expect of a strict internet domain.
	_validateSubdomain ($subdomain)
	Function to validate a subdomain: subdomain = domain-ref / domain-literal.
	_validateDliteral ($dliteral)
	Function to validate a domain literal: domain-literal = "[" *(dtext / quoted-pair) "]".
	_validateAddrSpec ($addr_spec)
	Function to validate an addr-spec.
	_validateLocalPart ($local_part)
	Function to validate the local part of an address: local-part = word *("." word)
	approximateCount ($data)
	Returns an approximate count of how many addresses are in the given string.
	isValidInetAddress ($data, $strict=false)
	This is a email validating function separate to the rest of the class.

Data Fields
	$address = ''
	The address being parsed by the RFC822 object.
	$default_domain = 'localhost'
	The default domain to use for unqualified addresses.
	$nestGroups = true
	Should we return a nested array showing groups, or flatten everything?
	$validate = true
	Whether or not to validate atoms for non-ascii characters.
	$addresses = array()
	The array of raw addresses built up as we parse.
	$structure = array()
	The final array of parsed address information that we build up.
	$error = null
	The current error message, if any.
	$index = null
	An internal counter/pointer.
	$num_groups = 0
	The number of groups that have been found in the address list.
	$mailRFC822 = true
	A variable so that we can tell whether or not we're inside a Mail_RFC822 object.
	$limit = null
	A limit after which processing stops.

Detailed Description

Definition at line 70 of file RFC822.php.

Member Function Documentation

Mail_RFC822::_hasUnclosedBrackets	(	$string,
		$chars
	)

Checks if a string has an unclosed brackets or not.

IMPORTANT: This function handles both angle brackets and square brackets;

private

Parameters

string	$string	The string to check.
string	$chars	The characters to check for.

Returns: boolean True if there are unclosed brackets inside the string, false otherwise.

Definition at line 400 of file RFC822.php.

References _hasUnclosedBracketsSub().

Referenced by _splitCheck().

    {
        $num_angle_start = substr_count($string, $chars[0]);
        $num_angle_end   = substr_count($string, $chars[1]);
        $this->_hasUnclosedBracketsSub($string, $num_angle_start, $chars[0]);
        $this->_hasUnclosedBracketsSub($string, $num_angle_end, $chars[1]);
        if ($num_angle_start < $num_angle_end) {
            $this->error = 'Invalid address spec. Unmatched quote or bracket (' . $chars . ')';
            return false;
        } else {
            return ($num_angle_start > $num_angle_end);
        }
    }

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Mail_RFC822::_hasUnclosedBracketsSub	(		$string,
		&	$num,
			$char
	)

Sub function that is used only by hasUnclosedBrackets().

private

Parameters

string	$string	The string to check.
integer	&$num	The number of occurences.
string	$char	The character to count.

Returns: integer The number of occurences of $char in $string, adjusted for backslashes.

Definition at line 425 of file RFC822.php.

References _hasUnclosedQuotes().

Referenced by _hasUnclosedBrackets().

    {
        $parts = explode($char, $string);
        for ($i = 0; $i < count($parts); $i++){
            if (substr($parts[$i], -1) == '\\' || $this->_hasUnclosedQuotes($parts[$i]))
                $num--;
            if (isset($parts[$i + 1]))
                $parts[$i + 1] = $parts[$i] . $char . $parts[$i + 1];
        }
        return $num;
    }

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Mail_RFC822::_hasUnclosedQuotes ( $string )

Checks if a string has unclosed quotes or not.

private

Parameters

string $string The string to check.

Returns: boolean True if there are unclosed quotes inside the string, false otherwise.

Definition at line 363 of file RFC822.php.

Referenced by _hasUnclosedBracketsSub(), and _splitCheck().

    {
        $string = trim($string);
        $iMax = strlen($string);
        $in_quote = false;
        $i = $slashes = 0;
        for (; $i < $iMax; ++$i) {
            switch ($string[$i]) {
            case '\\':
                ++$slashes;
                break;
            case '"':
                if ($slashes % 2 == 0) {
                    $in_quote = !$in_quote;
                }
                // Fall through to default action below.
            default:
                $slashes = 0;
                break;
            }
        }
        return $in_quote;
    }

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Mail_RFC822::_isGroup ( $address )

Checks for a group at the start of the string.

private

Parameters

string $address The address to check.

Returns: boolean Whether or not there is a group at the start of the string.

Definition at line 305 of file RFC822.php.

References $address, and _splitCheck().

Referenced by _splitAddresses().

    {
        // First comma not in quotes, angles or escaped:
        $parts  = explode(',', $address);
        $string = $this->_splitCheck($parts, ',');
        // Now we have the first address, we can reliably check for a
        // group by searching for a colon that's not escaped or in
        // quotes or angle brackets.
        if (count($parts = explode(':', $string)) > 1) {
            $string2 = $this->_splitCheck($parts, ':');
            return ($string2 !== $string);
        } else {
            return false;
        }
    }

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Mail_RFC822::_splitAddresses ( $address )

Splits an address into separate addresses.

private

Parameters

string $address The addresses to split.

Returns: boolean Success or failure.

Definition at line 229 of file RFC822.php.

References $address, _isGroup(), and _splitCheck().

Referenced by parseAddressList().

    {
        if (!empty($this->limit) && count($this->addresses) == $this->limit) {
            return '';
        }
        if ($this->_isGroup($address) && !isset($this->error)) {
            $split_char = ';';
            $is_group   = true;
        } elseif (!isset($this->error)) {
            $split_char = ',';
            $is_group   = false;
        } elseif (isset($this->error)) {
            return false;
        }
        // Split the string based on the above ten or so lines.
        $parts  = explode($split_char, $address);
        $string = $this->_splitCheck($parts, $split_char);
        // If a group...
        if ($is_group) {
            // If $string does not contain a colon outside of
            // brackets/quotes etc then something's fubar.
            // First check there's a colon at all:
            if (strpos($string, ':') === false) {
                $this->error = 'Invalid address: ' . $string;
                return false;
            }
            // Now check it's outside of brackets/quotes:
            if (!$this->_splitCheck(explode(':', $string), ':')) {
                return false;
            }
            // We must have a group at this point, so increase the counter:
            $this->num_groups++;
        }
        // $string now contains the first full address/group.
        // Add to the addresses array.
        $this->addresses[] = array(
                                   'address' => trim($string),
                                   'group'   => $is_group
                                   );
        // Remove the now stored address from the initial line, the +1
        // is to account for the explode character.
        $address = trim(substr($address, strlen($string) + 1));
        // If the next char is a comma and this was a group, then
        // there are more addresses, otherwise, if there are any more
        // chars, then there is another address.
        if ($is_group && substr($address, 0, 1) == ','){
            $address = trim(substr($address, 1));
            return $address;
        } elseif (strlen($address) > 0) {
            return $address;
        } else {
            return '';
        }
        // If you got here then something's off
        return false;
    }

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Mail_RFC822::_splitCheck	(	$parts,
		$char
	)

A common function that will check an exploded string.

private

Parameters

array	$parts	The exloded string.
string	$char	The char that was exploded on.

Returns: mixed False if the string contains unclosed quotes/brackets, or the string on success.

Definition at line 330 of file RFC822.php.

References _hasUnclosedBrackets(), and _hasUnclosedQuotes().

Referenced by _isGroup(), _splitAddresses(), _validateAddress(), _validateAddrSpec(), _validateDomain(), _validateLocalPart(), _validatePhrase(), _validateRouteAddr(), and validateMailbox().

    {
        $string = $parts[0];
        for ($i = 0; $i < count($parts); $i++) {
            if ($this->_hasUnclosedQuotes($string)
                || $this->_hasUnclosedBrackets($string, '<>')
                || $this->_hasUnclosedBrackets($string, '[]')
                || $this->_hasUnclosedBrackets($string, '()')
                || substr($string, -1) == '\\') {
                if (isset($parts[$i + 1])) {
                    $string = $string . $char . $parts[$i + 1];
                } else {
                    $this->error = 'Invalid address spec. Unclosed bracket or quotes';
                    return false;
                }
            } else {
                $this->index = $i;
                break;
            }
        }
        return $string;
    }

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Mail_RFC822::_validateAddress ( $address )

Function to begin checking the address.

private

Parameters

string $address The address to validate.

Returns: mixed False on failure, or a structured array of address information on success.

Definition at line 445 of file RFC822.php.

References $address, $addresses, $structure, _splitCheck(), _validatePhrase(), and validateMailbox().

Referenced by parseAddressList().

    {
        $is_group = false;
        $addresses = array();
        if ($address['group']) {
            $is_group = true;
            // Get the group part of the name
            $parts     = explode(':', $address['address']);
            $groupname = $this->_splitCheck($parts, ':');
            $structure = array();
            // And validate the group part of the name.
            if (!$this->_validatePhrase($groupname)){
                $this->error = 'Group name did not validate.';
                return false;
            } else {
                // Don't include groups if we are not nesting
                // them. This avoids returning invalid addresses.
                if ($this->nestGroups) {
                    $structure = new stdClass;
                    $structure->groupname = $groupname;
                }
            }
            $address['address'] = ltrim(substr($address['address'], strlen($groupname . ':')));
        }
        // If a group then split on comma and put into an array.
        // Otherwise, Just put the whole address in an array.
        if ($is_group) {
            while (strlen($address['address']) > 0) {
                $parts       = explode(',', $address['address']);
                $addresses[] = $this->_splitCheck($parts, ',');
                $address['address'] = trim(substr($address['address'], strlen(end($addresses) . ',')));
            }
        } else {
            $addresses[] = $address['address'];
        }
        // Check that $addresses is set, if address like this:
        // Groupname:;
        // Then errors were appearing.
        if (!count($addresses)){
            $this->error = 'Empty group.';
            return false;
        }
        // Trim the whitespace from all of the address strings.
        array_map('trim', $addresses);
        // Validate each mailbox.
        // Format could be one of: name <geezer@domain.com>
        //                         geezer@domain.com
        //                         geezer
        // ... or any other format valid by RFC 822.
        for ($i = 0; $i < count($addresses); $i++) {
            if (!$this->validateMailbox($addresses[$i])) {
                if (empty($this->error)) {
                    $this->error = 'Validation failed for: ' . $addresses[$i];
                }
                return false;
            }
        }
        // Nested format
        if ($this->nestGroups) {
            if ($is_group) {
                $structure->addresses = $addresses;
            } else {
                $structure = $addresses[0];
            }
        // Flat format
        } else {
            if ($is_group) {
                $structure = array_merge($structure, $addresses);
            } else {
                $structure = $addresses;
            }
        }
        return $structure;
    }

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Mail_RFC822::_validateAddrSpec ( $addr_spec )

Function to validate an addr-spec.

addr-spec = local-part "@" domain

private

Parameters

string $addr_spec The string to check.

Returns: mixed False on failure, or the validated addr-spec on success.

Definition at line 857 of file RFC822.php.

References $default_domain, _splitCheck(), _validateDomain(), and _validateLocalPart().

Referenced by _validateRouteAddr(), and validateMailbox().

    {
        $addr_spec = trim($addr_spec);
        // Split on @ sign if there is one.
        if (strpos($addr_spec, '@') !== false) {
            $parts      = explode('@', $addr_spec);
            $local_part = $this->_splitCheck($parts, '@');
            $domain     = substr($addr_spec, strlen($local_part . '@'));
        // No @ sign so assume the default domain.
        } else {
            $local_part = $addr_spec;
            $domain     = $this->default_domain;
        }
        if (($local_part = $this->_validateLocalPart($local_part)) === false) return false;
        if (($domain     = $this->_validateDomain($domain)) === false) return false;
        // Got here so return successful.
        return array('local_part' => $local_part, 'domain' => $domain);
    }

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Mail_RFC822::_validateAtom ( $atom )

Function to validate an atom which from rfc822 is: atom = 1*<any CHAR except specials, SPACE and CTLs>

If validation ($this->validate) has been turned off, then validateAtom() doesn't actually check anything. This is so that you can split a list of addresses up before encoding personal names (umlauts, etc.), for example.

private

Parameters

string $atom The string to check.

Returns: boolean Success or failure.

Definition at line 579 of file RFC822.php.

Referenced by _validatePhrase(), and _validateSubdomain().

    {
        if (!$this->validate) {
            // Validation has been turned off; assume the atom is okay.
            return true;
        }
        // Check for any char from ASCII 0 - ASCII 127
        // mjansen patch 16 Sep 2015 start
        // Check for specials:
        if (preg_match('/[][()<>@,;\\:". ]/', $atom)) {
            return false;
        }
        // Check for control characters (ASCII 0-31):
        if (preg_match('/[\\x00-\\x1F]+/', $atom)) {
            return false;
        }
        #16291
        #17618
        if (!(bool)preg_match('//u', $atom)) {
            return false;
        }
        // mjansen patch 16 Sep 2015 end
        return true;
    }

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Mail_RFC822::_validateDliteral ( $dliteral )

Function to validate a domain literal: domain-literal = "[" *(dtext / quoted-pair) "]".

private

Parameters

string $dliteral The string to check.

Returns: boolean Success or failure.

Definition at line 843 of file RFC822.php.

Referenced by _validateSubdomain().

    {
        return !preg_match('/(.)[][\x0D\\\\]/', $dliteral, $matches) && $matches[1] != '\\';
    }

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Mail_RFC822::_validateDomain ( $domain )

Function to validate a domain, though this is not quite what you expect of a strict internet domain.

domain = sub-domain *("." sub-domain)

private

Parameters

string $domain The string to check.

Returns: mixed False on failure, or the validated domain on success.

Definition at line 795 of file RFC822.php.

References _splitCheck(), and _validateSubdomain().

Referenced by _validateAddrSpec(), and _validateRoute().

    {
        // Note the different use of $subdomains and $sub_domains
        $subdomains = explode('.', $domain);
        while (count($subdomains) > 0) {
            $sub_domains[] = $this->_splitCheck($subdomains, '.');
            for ($i = 0; $i < $this->index + 1; $i++)
                array_shift($subdomains);
        }
        foreach ($sub_domains as $sub_domain) {
            if (!$this->_validateSubdomain(trim($sub_domain)))
                return false;
        }
        // Managed to get here, so return input.
        return $domain;
    }

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Mail_RFC822::_validateLocalPart ( $local_part )

Function to validate the local part of an address: local-part = word *("." word)

private

Parameters

string $local_part

Returns: mixed False on failure, or the validated local part on success.

Definition at line 888 of file RFC822.php.

References _splitCheck(), and _validatePhrase().

Referenced by _validateAddrSpec().

    {
        $parts = explode('.', $local_part);
        $words = array();
        // Split the local_part into words.
        while (count($parts) > 0){
            $words[] = $this->_splitCheck($parts, '.');
            for ($i = 0; $i < $this->index + 1; $i++) {
                array_shift($parts);
            }
        }
        // Validate each word.
        foreach ($words as $word) {
            // If this word contains an unquoted space, it is invalid. (6.2.4)
            if (strpos($word, ' ') && $word[0] !== '"')
            {
                return false;
            }
            if ($this->_validatePhrase(trim($word)) === false) return false;
        }
        // Managed to get here, so return the input.
        return $local_part;
    }

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Mail_RFC822::_validatePhrase ( $phrase )

Function to validate a phrase.

private

Parameters

string $phrase The phrase to check.

Returns: boolean Success or failure.

Definition at line 538 of file RFC822.php.

References _splitCheck(), _validateAtom(), and _validateQuotedString().

Referenced by _validateAddress(), _validateLocalPart(), and validateMailbox().

    {
        // Splits on one or more Tab or space.
        $parts = preg_split('/[ \\x09]+/', $phrase, -1, PREG_SPLIT_NO_EMPTY);
        $phrase_parts = array();
        while (count($parts) > 0){
            $phrase_parts[] = $this->_splitCheck($parts, ' ');
            for ($i = 0; $i < $this->index + 1; $i++)
                array_shift($parts);
        }
        foreach ($phrase_parts as $part) {
            // If quoted string:
            if (substr($part, 0, 1) == '"') {
                if (!$this->_validateQuotedString($part)) {
                    return false;
                }
                continue;
            }
            // Otherwise it's an atom:
            if (!$this->_validateAtom($part)) return false;
        }
        return true;
    }

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Mail_RFC822::_validateQuotedString ( $qstring )

Function to validate quoted string, which is: quoted-string = <"> *(qtext/quoted-pair) <">

private

Parameters

string $qstring The string to check

Returns: boolean Success or failure.

Definition at line 615 of file RFC822.php.

Referenced by _validatePhrase().

    {
        // Leading and trailing "
        $qstring = substr($qstring, 1, -1);
        // Perform check, removing quoted characters first.
        return !preg_match('/[\x0D\\\\"]/', preg_replace('/\\\\./', '', $qstring));
    }

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Mail_RFC822::_validateRoute ( $route )

Function to validate a route, which is: route = 1#("@" domain) ":".

private

Parameters

string $route The string to check.

Returns: mixed False on failure, or the validated $route on success.

Definition at line 772 of file RFC822.php.

References _validateDomain().

Referenced by _validateRouteAddr().

    {
        // Split on comma.
        $domains = explode(',', trim($route));
        foreach ($domains as $domain) {
            $domain = str_replace('@', '', trim($domain));
            if (!$this->_validateDomain($domain)) return false;
        }
        return $route;
    }

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Mail_RFC822::_validateRouteAddr ( $route_addr )

This function validates a route-addr which is: route-addr = "<" [route] addr-spec ">".

Angle brackets have already been removed at the point of getting to this function.

private

Parameters

string $route_addr The string to check.

Returns: mixed False on failure, or an array containing validated address/route information on success.

Definition at line 722 of file RFC822.php.

References _splitCheck(), _validateAddrSpec(), and _validateRoute().

Referenced by validateMailbox().

    {
        // Check for colon.
        if (strpos($route_addr, ':') !== false) {
            $parts = explode(':', $route_addr);
            $route = $this->_splitCheck($parts, ':');
        } else {
            $route = $route_addr;
        }
        // If $route is same as $route_addr then the colon was in
        // quotes or brackets or, of course, non existent.
        if ($route === $route_addr){
            unset($route);
            $addr_spec = $route_addr;
            if (($addr_spec = $this->_validateAddrSpec($addr_spec)) === false) {
                return false;
            }
        } else {
            // Validate route part.
            if (($route = $this->_validateRoute($route)) === false) {
                return false;
            }
            $addr_spec = substr($route_addr, strlen($route . ':'));
            // Validate addr-spec part.
            if (($addr_spec = $this->_validateAddrSpec($addr_spec)) === false) {
                return false;
            }
        }
        if (isset($route)) {
            $return['adl'] = $route;
        } else {
            $return['adl'] = '';
        }
        $return = array_merge($return, $addr_spec);
        return $return;
    }

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Mail_RFC822::_validateSubdomain ( $subdomain )

Function to validate a subdomain: subdomain = domain-ref / domain-literal.

private

Parameters

string $subdomain The string to check.

Returns: boolean Success or failure.

Definition at line 823 of file RFC822.php.

References _validateAtom(), and _validateDliteral().

Referenced by _validateDomain().

    {
        if (preg_match('|^\[(.*)]$|', $subdomain, $arr)){
            if (!$this->_validateDliteral($arr[1])) return false;
        } else {
            if (!$this->_validateAtom($subdomain)) return false;
        }
        // Got here, so return successful.
        return true;
    }

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Mail_RFC822::approximateCount ( $data )

Returns an approximate count of how many addresses are in the given string.

This is APPROXIMATE as it only splits based on a comma which has no preceding backslash. Could be useful as large amounts of addresses will end up producing large structures when used with parseAddressList().

Parameters

string $data Addresses to count

Returns: int Approximate count

Definition at line 926 of file RFC822.php.

    {
        return count(preg_split('/(?<!\\\\),/', $data));
    }

Mail_RFC822::isValidInetAddress	(	$data,
		$strict = `false`
	)

This is a email validating function separate to the rest of the class.

It simply validates whether an email is of the common internet form: <user><domain>. This can be sufficient for most people. Optional stricter mode can be utilised which restricts mailbox characters allowed to alphanumeric, full stop, hyphen and underscore.

Parameters

string	$data	Address to check
boolean	$strict	Optional stricter mode

Returns: mixed False if it fails, an indexed array username/domain if it matches

Definition at line 944 of file RFC822.php.

    {
        $regex = $strict ? '/^([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})$/i' : '/^([*+!.&#$|\'\\%\/0-9a-z^_`{}=?~:-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})$/i';
        if (preg_match($regex, trim($data), $matches)) {
            return array($matches[1], $matches[2]);
        } else {
            return false;
        }
    }

Mail_RFC822::Mail_RFC822	(	$address = `null`,
		$default_domain = `null`,
		$nest_groups = `null`,
		$validate = `null`,
		$limit = `null`
	)

Sets up the object.

The address must either be set here or when calling parseAddressList(). One or the other.

public

Parameters

string	$address	The address(es) to validate.
string	$default_domain	Default domain/host etc. If not supplied, will be set to localhost.
boolean	$nest_groups	Whether to return the structure with groups nested for easier viewing.
boolean	$validate	Whether to validate atoms. Turn this off if you need to run addresses through before encoding the personal names, for instance.

Returns: object Mail_RFC822 A new Mail_RFC822 object.

Definition at line 152 of file RFC822.php.

References $address, $default_domain, $limit, and $validate.

Referenced by parseAddressList().

    {
        if (isset($address))        $this->address        = $address;
        if (isset($default_domain)) $this->default_domain = $default_domain;
        if (isset($nest_groups))    $this->nestGroups     = $nest_groups;
        if (isset($validate))       $this->validate       = $validate;
        if (isset($limit))          $this->limit          = $limit;
    }

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Mail_RFC822::parseAddressList	(	$address = `null`,
		$default_domain = `null`,
		$nest_groups = `null`,
		$validate = `null`,
		$limit = `null`
	)

Starts the whole process.

The address must either be set here or when creating the object. One or the other.

public

Parameters

string	$address	The address(es) to validate.
string	$default_domain	Default domain/host etc.
boolean	$nest_groups	Whether to return the structure with groups nested for easier viewing.
boolean	$validate	Whether to validate atoms. Turn this off if you need to run addresses through before encoding the personal names, for instance.

Returns: array A structured array of addresses.

Definition at line 173 of file RFC822.php.

References $address, $default_domain, $limit, $structure, $valid, $validate, _splitAddresses(), _validateAddress(), Mail_RFC822(), and PEAR\raiseError().

Referenced by Mail\parseRecipients().

    {
        if (!isset($this) || !isset($this->mailRFC822)) {
            $obj = new Mail_RFC822($address, $default_domain, $nest_groups, $validate, $limit);
            return $obj->parseAddressList();
        }
        if (isset($address))        $this->address        = $address;
        if (isset($default_domain)) $this->default_domain = $default_domain;
        if (isset($nest_groups))    $this->nestGroups     = $nest_groups;
        if (isset($validate))       $this->validate       = $validate;
        if (isset($limit))          $this->limit          = $limit;
        $this->structure  = array();
        $this->addresses  = array();
        $this->error      = null;
        $this->index      = null;
        // Unfold any long lines in $this->address.
        $this->address = preg_replace('/\r?\n/', "\r\n", $this->address);
        $this->address = preg_replace('/\r\n(\t| )+/', ' ', $this->address);
        while ($this->address = $this->_splitAddresses($this->address));
        if ($this->address === false || isset($this->error)) {
            require_once 'PEAR.php';
            return PEAR::raiseError($this->error);
        }
        // Validate each address individually.  If we encounter an invalid
        // address, stop iterating and return an error immediately.
        foreach ($this->addresses as $address) {
            $valid = $this->_validateAddress($address);
            if ($valid === false || isset($this->error)) {
                require_once 'PEAR.php';
                return PEAR::raiseError($this->error);
            }
            if (!$this->nestGroups) {
                $this->structure = array_merge($this->structure, $valid);
            } else {
                $this->structure[] = $valid;
            }
        }
        return $this->structure;
    }

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Mail_RFC822::validateMailbox ( & $mailbox )

Function to validate a mailbox, which is: mailbox = addr-spec ; simple address / phrase route-addr ; name and route-addr.

public

Parameters

string &$mailbox The string to check.

Returns: boolean Success or failure.

Definition at line 633 of file RFC822.php.

References $comment, _splitCheck(), _validateAddrSpec(), _validatePhrase(), and _validateRouteAddr().

Referenced by _validateAddress().

    {
        // A couple of defaults.
        $phrase  = '';
        $comment = '';
        $comments = array();
        // Catch any RFC822 comments and store them separately.
        $_mailbox = $mailbox;
        while (strlen(trim($_mailbox)) > 0) {
            $parts = explode('(', $_mailbox);
            $before_comment = $this->_splitCheck($parts, '(');
            if ($before_comment != $_mailbox) {
                // First char should be a (.
                $comment    = substr(str_replace($before_comment, '', $_mailbox), 1);
                $parts      = explode(')', $comment);
                $comment    = $this->_splitCheck($parts, ')');
                $comments[] = $comment;
                // +2 is for the brackets
                $_mailbox = substr($_mailbox, strpos($_mailbox, '('.$comment)+strlen($comment)+2);
            } else {
                break;
            }
        }
        foreach ($comments as $comment) {
            $mailbox = str_replace("($comment)", '', $mailbox);
        }
        $mailbox = trim($mailbox);
        // Check for name + route-addr
        if (substr($mailbox, -1) == '>' && substr($mailbox, 0, 1) != '<') {
            $parts  = explode('<', $mailbox);
            $name   = $this->_splitCheck($parts, '<');
            $phrase     = trim($name);
            $route_addr = trim(substr($mailbox, strlen($name.'<'), -1));
            if ($this->_validatePhrase($phrase) === false || ($route_addr = $this->_validateRouteAddr($route_addr)) === false) {
                return false;
            }
        // Only got addr-spec
        } else {
            // First snip angle brackets if present.
            if (substr($mailbox, 0, 1) == '<' && substr($mailbox, -1) == '>') {
                $addr_spec = substr($mailbox, 1, -1);
            } else {
                $addr_spec = $mailbox;
            }
            if (($addr_spec = $this->_validateAddrSpec($addr_spec)) === false) {
                return false;
            }
        }
        // Construct the object that will be returned.
        $mbox = new stdClass();
        // Add the phrase (even if empty) and comments
        $mbox->personal = $phrase;
        $mbox->comment  = isset($comments) ? $comments : array();
        if (isset($route_addr)) {
            $mbox->mailbox = $route_addr['local_part'];
            $mbox->host    = $route_addr['domain'];
            $route_addr['adl'] !== '' ? $mbox->adl = $route_addr['adl'] : '';
        } else {
            $mbox->mailbox = $addr_spec['local_part'];
            $mbox->host    = $addr_spec['domain'];
        }
        $mailbox = $mbox;
        return true;
    }