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run code in 300+ PHP versions simultaneously
<?php function ad($a=''){ if(is_int($a)){ echo $a.'int\n'; }else{ echo $a.'not\n'; } } ad(); ad(2); ad('2'); ad(2.5); ad(0); ad(1);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 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 - 8.3.6
not\n2int\n2not\n2.5not\n0int\n1int\n
preferences:
239.94 ms | 405 KiB | 353 Q