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<?php function parseQueryString($str) { $result = []; foreach (explode('&', $str) as $element) { $parts = explode('=', $element, 2); $key = urldecode(array_shift($parts)); $value = $parts ? urldecode(array_shift($parts)) : ''; if (false !== $pos = strpos($key, '')) { $base = substr($result, $key, 0, $pos++); $result[$base] = []; $target = &$result[$base]; do { $end = strpos($key, ']', $pos); $index = substr($key, $pos, $end - $pos); $target[$index] = []; $target = &$target[$index]; $pos = $end; } while($pos < strlen($key)); var_dump($result); } } } $str = 'foo=bar&baz[foo]=qux&baz[foo][goat]=chick'; parseQueryString($str);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught ArgumentCountError: substr() expects at most 3 arguments, 4 given in /in/i9DX9:13 Stack trace: #0 /in/i9DX9(13): substr(Array, 'foo', 0, 0) #1 /in/i9DX9(31): parseQueryString('foo=bar&baz[foo...') #2 {main} thrown in /in/i9DX9 on line 13
Process exited with code 255.
Output for 5.4.12 - 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, 7.4.0 - 7.4.33
Warning: strpos(): Empty needle in /in/i9DX9 on line 12 Warning: strpos(): Empty needle in /in/i9DX9 on line 12 Warning: strpos(): Empty needle in /in/i9DX9 on line 12
Output for 5.4.0 - 5.4.11
Warning: strpos(): Empty delimiter in /in/i9DX9 on line 12 Warning: strpos(): Empty delimiter in /in/i9DX9 on line 12 Warning: strpos(): Empty delimiter in /in/i9DX9 on line 12
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
Parse error: syntax error, unexpected '[' in /in/i9DX9 on line 5
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/i9DX9 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/i9DX9 on line 5
Process exited with code 255.

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