ilDclStack Class Reference

This file is part of ILIAS, a powerful learning management system published by ILIAS open source e-Learning e.V. More...

Collaboration diagram for ilDclStack:

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

Protected Attributes
array	$stack = array()

Detailed Description

This file is part of ILIAS, a powerful learning management system published by ILIAS open source e-Learning e.V.

ILIAS is licensed with the GPL-3.0, see https://www.gnu.org/licenses/gpl-3.0.en.html You should have received a copy of said license along with the source code, too.

If this is not the case or you just want to try ILIAS, you'll find us at: https://www.ilias.de https://github.com/ILIAS-eLearning

Definition at line 19 of file class.ilDclStack.php.

Member Function Documentation

count()

ilDclStack::count

(

)

Definition at line 70 of file class.ilDclStack.php.

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

References count().

Referenced by count(), ILIAS\UI\Implementation\Component\Table\Data\getColumnCount(), isEmpty(), pop(), and top().

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debug()

ilDclStack::debug

(

)

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

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

isEmpty()

ilDclStack::isEmpty

(

)

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

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

References count().

Referenced by pop(), and top().

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pop()

ilDclStack::pop

(

)

Returns

?float|int|string

Definition at line 34 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

float | int | string

$elem

Definition at line 26 of file class.ilDclStack.php.

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

reset()

ilDclStack::reset

(

)

Definition at line 65 of file class.ilDclStack.php.

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

top()

ilDclStack::top

(

)

Returns

?float|int|string

Definition at line 51 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

array ilDclStack::$stack = array()

protected

Definition at line 21 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