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run code in 300+ PHP versions simultaneously
<?php function concat_path_components($path_components) { $first_component = array_shift($path_components); if ($first_component == NULL) return ""; return array_reduce( $path_components, function ($path, $path_component) { return $path . DIRECTORY_SEPARATOR . $path_component; }, $first_component); } function path_components($path) { $components = array(); while ($path != "." && $path != "/") { array_unshift($components, basename($path)); $path = dirname($path); } if ($path == "/") array_unshift($components, "/"); return $components; } function path_relative_to($path, $rel) { $path_components = path_components($path); $copy = $path_components; $rel_components = path_components($rel); var_dump($path_components); var_dump($rel_components); for($i = 0 ; $i < count($rel_components) ; ++$i) { if ($path_components[$i] == $rel[$i]) $copy = array_shift($copy); else break; } var_dump($copy); echo $i . " " . count($rel_components) . PHP_EOL; if ($i == count($rel_components)) return concat_path_components($copy); else return NULL; } var_dump(path_relative_to("/a/b/c", "/a/b"));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(4) { [0]=> string(1) "/" [1]=> string(1) "a" [2]=> string(1) "b" [3]=> string(1) "c" } array(3) { [0]=> string(1) "/" [1]=> string(1) "a" [2]=> string(1) "b" } Fatal error: Uncaught TypeError: array_shift(): Argument #1 ($array) must be of type array, string given in /in/lV6hT:46 Stack trace: #0 /in/lV6hT(46): array_shift('/') #1 /in/lV6hT(61): path_relative_to('/a/b/c', '/a/b') #2 {main} thrown in /in/lV6hT on line 46
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 array(4) { [0]=> string(1) "/" [1]=> string(1) "a" [2]=> string(1) "b" [3]=> string(1) "c" } array(3) { [0]=> string(1) "/" [1]=> string(1) "a" [2]=> string(1) "b" } Fatal error: Uncaught TypeError: array_shift(): Argument #1 ($array) must be of type array, string given in /in/lV6hT:46 Stack trace: #0 /in/lV6hT(46): array_shift('/') #1 /in/lV6hT(61): path_relative_to('/a/b/c', '/a/b') #2 {main} thrown in /in/lV6hT on line 46
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
array(4) { [0]=> string(1) "/" [1]=> string(1) "a" [2]=> string(1) "b" [3]=> string(1) "c" } array(3) { [0]=> string(1) "/" [1]=> string(1) "a" [2]=> string(1) "b" } Warning: array_shift() expects parameter 1 to be array, string given in /in/lV6hT on line 46 NULL 2 3 NULL
Output for 5.2.3 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/lV6hT on line 12
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected T_FUNCTION in <b>/in/lV6hT</b> on line <b>12</b><br />
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
<br /> <b>Parse error</b>: parse error, unexpected T_FUNCTION in <b>/in/lV6hT</b> on line <b>12</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/lV6hT</b> on line <b>12</b><br />
Process exited with code 255.
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