3v4l.org

run code in 300+ PHP versions simultaneously
<?php $search_expression = '+word1 -word2 -"word word"'; $words = preg_split("~\"[^\"]+\"(*SKIP)(*FAIL)|\h+~", $search_expression); print_r($words);
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
Array ( [0] => +word1 [1] => -word2 [2] => -"word word" )
preferences:
147.69 ms | 407 KiB | 5 Q