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@ 2017-12-11T17:44:42Z

<?php

function print_while_each($list) {
    while (list($key, $val) = each($list)) {
        echo $key, $val;
        if ($val == '2') {
            $list[] = 4;
        }
    }
}

function print_foreach($list) {
    foreach ($list as $key => $val) {
        echo $key, $val;
        if ($val == '2') {
            $list[] = 4;
        }
    }
}

function print_while_next($list) {
    $val = reset($list);
    while (!empty($val)) {
        $key = key($list);
        $val = current($list);
        
        echo $key, $val;
        if ($val == '2') {
            $list[] = 4;
        }
        $val = next($list);
    }
}

$list = array('1', '2', '3');

print_while_each($list);
echo '<br>', PHP_EOL;

print_foreach($list);
echo '<br>', PHP_EOL;

print_while_next($list);
echo '<br>', PHP_EOL;

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Call to undefined function each() in /in/g77Ae:4 Stack trace: #0 /in/g77Ae(37): print_while_each(Array) #1 {main} thrown in /in/g77Ae on line 4
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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