3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'key1\value1\key2\value2\key3\value3\key4\value4\key5\value5'; parse_str(preg_replace('/([^\\\\]+)\\\\([^\\\\]+)\\\\?/', '$1=$2&', $string), $output); var_export($output);
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array ( 'key1' => 'value1', 'key2' => 'value2', 'key3' => 'value3', 'key4' => 'value4', 'key5' => 'value5', )

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102.33 ms | 1376 KiB | 4 Q