<?php
namespace Encase\Functional;
/**
* Remove the last element from the container and return it.
* This function takes the input by reference and changes its length.
*
* If used on a string, the string is treated as a sequence of unicode
* characters in the default encoding and removes the last character.
*
* This function does not work with `\Generator`.
*
* @param array|string|\ArrayAccess|\stdClass $arrayish Array-like container.
* @return mixed The last element of the container.
*/
function pop(&$arrayish)
{
$type = assertType(
$arrayish,
['array', '\ArrayAccess', '\Traversable', 'string', 'stdClass'],
'type'
);
if ($type === 'array') {
return \array_pop($arrayish);
}
if ($type === 'string') {
$result = \mb_substr($arrayish, -1);
$arrayish = \mb_substr($arrayish, 0, \mb_strlen($arrayish) - 1);
return $result;
}
if ($type === '\ArrayAccess') {
if ($arrayish instanceof \IteratorAggregate) {
$iterator = $arrayish->getIterator();
$value = \end($iterator);
$key = \key($iterator);
} else {
foreach ($arrayish as $key => $value) {
}
}
unset($arrayish[$key]);
} else {
$value = \end($arrayish);
$key = \key($arrayish);
unset($arrayish->$key);
}
return $value;
}
|
Download
