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run code in 300+ PHP versions simultaneously

@ 2016-01-11T17:10:41Z

<?php
function setKey($session_keys, $value)
	{
		$current_key = '';
		$counter = 0;
		$prev_step = $_SESSION;

		try {
			$session_keys_array = explode(':', $session_keys);
			
           krsort($session_keys_array);
            $c = count($session_keys_array);
            var_dump($c);
             $count = 0;
			foreach ($session_keys_array as $key) {
		        $count++;
		     
    		    switch ($count) {
                    case 1:
                        echo "i равно 0";
                        break;
                    case ($count > 1 AND $count < $c):
                        echo "i равно 1";
                        break;
                    case $c:
                        echo "i равно 2";
                        break;
                }
			
			}
		} catch (Exception $e) {
			//TODO:log notice if Session[currentKey] is not an array
			return false;
		}
        	
		return array_key_exists($key,$prev_step) && eval('!empty($_SESSION' . $current_key . ');');
	}
    
$_SESSION['1']['2']['3'] = 'zzzz';

setKey('1:2:3', 77);

echo $_SESSION['1']['2']['3'];

Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: int(3) i равно 0i равно 1i равно 2zzzz
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 int(3) i равно 0i равно 1i равно 2zzzz

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159.71 ms | 402 KiB | 196 Q