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run code in 300+ PHP versions simultaneously
<?php $orders = array(1,2,3,4,5); $index = 2; $newOrder = 1; // 3,1,2,4,5 function reorder($index, $newOrder, $orders) { $newOrders = array(); $oldOrder = $index; $item = $orders[$index]; $newOrders[$index] = $item; $lowers = array(); $uppers = array(); $direction = index - $newOrder; foreach ($orders as $i => $v) { if ($i < $index) { $lowers[] = $i; } if ($i > $index) { $uppers[] = $i; } } if ($direction < 0) { foreach ($lowers as $i => $v) { $newOrders[$v + 1] = $orders[$v]; } foreach ($uppers as $i => $v) { $newOrders[$v] = $orders[$v]; } } else { foreach ($uppers as $i => $v) { $newOrders[$v - 1] = $orders[$v]; } foreach ($lowers as $i => $v) { $newOrders[$v] = $orders[$v]; } } //ksort($newOrders); var_dump($newOrders); } reorder($index, $newOrder, $orders);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught Error: Undefined constant "index" in /in/603Wm:13 Stack trace: #0 /in/603Wm(44): reorder(2, 1, Array) #1 {main} thrown in /in/603Wm on line 13
Process exited with code 255.
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 Fatal error: Uncaught Error: Undefined constant "index" in /in/603Wm:13 Stack trace: #0 /in/603Wm(44): reorder(2, 1, Array) #1 {main} thrown in /in/603Wm on line 13
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant index - assumed 'index' (this will throw an Error in a future version of PHP) in /in/603Wm on line 13 Warning: A non-numeric value encountered in /in/603Wm on line 13 array(4) { [2]=> int(2) [1]=> int(1) [3]=> int(4) [4]=> int(5) }
Output for 7.1.0 - 7.1.20
Notice: Use of undefined constant index - assumed 'index' in /in/603Wm on line 13 Warning: A non-numeric value encountered in /in/603Wm on line 13 array(4) { [2]=> int(2) [1]=> int(1) [3]=> int(4) [4]=> int(5) }
Output for 5.4.9 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
Notice: Use of undefined constant index - assumed 'index' in /in/603Wm on line 13 array(4) { [2]=> int(2) [1]=> int(1) [3]=> int(4) [4]=> int(5) }
preferences:
173.01 ms | 402 KiB | 219 Q