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run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); $x = []; $x['1'] = "numeric string"; $x["hello"] = "normal string"; $x['01'] = "fun 1"; $x['5.5'] = "fun 2"; $x[' 1'] = "HA HA"; echo var_export($x, true) . "\n"; foreach ($x as $k => $v) { printf("%s => %s\n", $v, gettype($k)); }
Output for 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
array ( 1 => 'numeric string', 'hello' => 'normal string', '01' => 'fun 1', '5.5' => 'fun 2', ' 1' => 'HA HA', ) numeric string => integer normal string => string fun 1 => string fun 2 => string HA HA => string
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 array ( 1 => 'numeric string', 'hello' => 'normal string', '01' => 'fun 1', '5.5' => 'fun 2', ' 1' => 'HA HA', ) numeric string => integer normal string => string fun 1 => string fun 2 => string HA HA => string
preferences:
184.31 ms | 402 KiB | 182 Q