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run code in 300+ PHP versions simultaneously
<?php $dword = '00000000'; for ($i = 0; $i < 10; ++$i){ $dword = dword_inc($dword); echo $dword."\n"; } function dword_inc($dword){ if (empty($dword)){ return '1'; } $last = $dword{strlen($dword)-1}; if ($last == 9){ $last = 'A'; }else{ $last++; } if ($last == 'G'){ $last = 0; if (strlen($dword) > 1){ $dword2 = dword_inc(substr($dword, 0, strlen($dword)-1)); $dword = $dword2.'0'; }else{ $dword = '1'.$dword; } }else{ $dword{strlen($dword)-1} = $last; } return $dword; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Array and string offset access syntax with curly braces is no longer supported in /in/JK9dt on line 12
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: Array and string offset access syntax with curly braces is deprecated in /in/JK9dt on line 12 Deprecated: Array and string offset access syntax with curly braces is deprecated in /in/JK9dt on line 29 00000001 00000002 00000003 00000004 00000005 00000006 00000007 00000008 00000009 0000000A
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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
00000001 00000002 00000003 00000004 00000005 00000006 00000007 00000008 00000009 0000000A
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223.37 ms | 404 KiB | 354 Q