Online PHP editor | output for kn2jD

@ 2014-04-23T17:43:34Z

<?php
$a = [
	'sss4444dfdf', //лишние
    '444444', //много
    'sdfsdf', //все не то
    '', //
    '4', //мало
];
$i = 0;
echo($tmp = preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])? $tmp : 0).PHP_EOL;
echo($tmp = preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])? $tmp : 0).PHP_EOL;
echo($tmp = preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])? $tmp : 0).PHP_EOL;
echo($tmp = preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])? $tmp : 0).PHP_EOL;
echo($tmp = preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])? $tmp : 0).PHP_EOL;

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Warning: Undefined variable $tmp in /in/kn2jD on line 10 0 0 0
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33: Notice: Undefined variable: tmp in /in/kn2jD on line 10 0 0 0
Output for 7.3.32 - 7.3.33, 7.4.26: 0 0 0
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/kn2jD on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/kn2jD on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/kn2jD on line 2
Process exited with code 255.

preferences:dark modelive preview