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run code in 300+ PHP versions simultaneously
<?php // Example 1 $null = null; echo $null['undefined']; // Example 2 $reference =& $undefined; // Example 3 $cookie =& $undefined ?? 'cookie'; echo $cookie . "\n"; // Example 4 $array = ['value']; $value =& $array[0]; $anotherArray = $array; $anotherArray[0] = 'surprise!'; echo $value . "\n";
Output for 8.3.0 - 8.3.4, 8.3.6
Warning: Trying to access array offset on null in /in/uZNlq on line 5 surprise!
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 Warning: Trying to access array offset on null in /in/uZNlq on line 5 surprise!
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Warning: Trying to access array offset on value of type null in /in/uZNlq on line 5 surprise!
Output for 7.4.0 - 7.4.33
Notice: Trying to access array offset on value of type null in /in/uZNlq on line 5 surprise!
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
surprise!
Output for 4.4.2 - 4.4.9, 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 - 5.6.40
Parse error: syntax error, unexpected '?' in /in/uZNlq on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '?' in /in/uZNlq on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/uZNlq on line 11
Process exited with code 255.
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289.1 ms | 401 KiB | 457 Q