ilDclStack Class Reference

Class ilDclStack. More...

Collaboration diagram for ilDclStack:

Public Member Functions
	push ($elem)
	pop ()
	top ()
	isEmpty ()
	reset ()
	count ()
	debug ()

Protected Attributes
	$stack = array()

Detailed Description

Class ilDclStack.

Author

Stefan Wanzenried sw@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch

Fabian Schmid fs@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch

Definition at line 9 of file class.ilDclStack.php.

Member Function Documentation

count()

ilDclStack::count

(

)

Returns

int

Definition at line 75 of file class.ilDclStack.php.

    {
        return count($this->stack);
    }

References count().

Referenced by count(), isEmpty(), pop(), and top().

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debug()

ilDclStack::debug

(

)

Definition at line 81 of file class.ilDclStack.php.

    {
        echo "<pre>" . print_r($this->stack, 1) . "</pre>";
    }

isEmpty()

ilDclStack::isEmpty

(

)

Returns

bool

Definition at line 60 of file class.ilDclStack.php.

    {
        return !(bool) count($this->stack);
    }

References count().

Referenced by pop(), and top().

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pop()

ilDclStack::pop

(

)

Returns

null

Definition at line 30 of file class.ilDclStack.php.

    {
        if (!$this->isEmpty()) {
            $last_index = count($this->stack) - 1;
            $elem = $this->stack[$last_index];
            unset($this->stack[$last_index]);
            $this->stack = array_values($this->stack); // re-index
            return $elem;
        }
 
        return null;
    }

References count(), and isEmpty().

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push()

ilDclStack::push

(

$elem

)

Parameters

$elem

Definition at line 21 of file class.ilDclStack.php.

    {
        $this->stack[] = $elem;
    }

reset()

ilDclStack::reset

(

)

Definition at line 66 of file class.ilDclStack.php.

    {
        $this->stack = array();
    }

top()

ilDclStack::top

(

)

Returns

null

Definition at line 47 of file class.ilDclStack.php.

    {
        if (!$this->isEmpty()) {
            return $this->stack[count($this->stack) - 1];
        }
 
        return null;
    }

References count(), and isEmpty().

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Field Documentation

$stack

ilDclStack::$stack = array()

protected

Definition at line 15 of file class.ilDclStack.php.

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The documentation for this class was generated from the following file:

• Modules/DataCollection/classes/Fields/Formula/class.ilDclStack.php