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run code in 300+ PHP versions simultaneously
<?php $x = array( 1, 2, true, null, //will be removed '', //will be removed false, //will be removed 0, //will be removed array(), //will be removed 'finish' ); foreach(array_filter($x, function($v){ echo $v; return true; }) as $b) {}
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
1210 Warning: Array to string conversion in /in/L2UDe on line 15 Arrayfinish
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
1210 Notice: Array to string conversion in /in/L2UDe on line 15 Arrayfinish
Output for 5.3.0 - 5.3.29, 7.3.32 - 7.3.33
1210Arrayfinish
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/L2UDe on line 15
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 T_FUNCTION in /in/L2UDe on line 15
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/L2UDe on line 15
Process exited with code 255.

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