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run code in 300+ PHP versions simultaneously
<?php $a = "1,2,3,4,7,8,9,10,11,12,13,14,15"; if (preg_match('/6/',$a)==false) echo 'false'; $arrayzns=explode(",",$a); print_r($arrayzns); ?>
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
falseArray ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 7 [5] => 8 [6] => 9 [7] => 10 [8] => 11 [9] => 12 [10] => 13 [11] => 14 [12] => 15 )
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 falseArray ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 7 [5] => 8 [6] => 9 [7] => 10 [8] => 11 [9] => 12 [10] => 13 [11] => 14 [12] => 15 )

preferences:
185.33 ms | 402 KiB | 227 Q