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run code in 200+ php & hhvm versions
Bugs & Features
<?php echo isnumber(7.6);
Output for 7.0.0 - 7.3.0beta1
Fatal error: Uncaught Error: Call to undefined function isnumber() in /in/Cc73A:3 Stack trace: #0 {main} thrown in /in/Cc73A on line 3
Process exited with code 255.
Output for 5.6.0 - 5.6.24
Fatal error: Call to undefined function isnumber() in /in/Cc73A on line 3
Process exited with code 255.