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run code in 300+ PHP versions simultaneously
<?php foreach([0.2,-1, '2e1',0,false,'','2ee'] as $v){ echo (string)$v . ': '; var_dump(is_numeric($v)); }
Output for 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 - 7.3.33, 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
0.2: bool(true) -1: bool(true) 2e1: bool(true) 0: bool(true) : bool(false) : bool(false) 2ee: bool(false)
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 0.2: bool(true) -1: bool(true) 2e1: bool(true) 0: bool(true) : bool(false) : bool(false) 2ee: bool(false)
preferences:
191.55 ms | 402 KiB | 287 Q