3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str='亜　飛行機　　費 ひひ ほほ ほほほほ '; $str=trim($str); $arr=preg_split('/[:space:]+/',trim($str),-1,PREG_SPLIT_NO_EMPTY); var_dump($arr);
Output for 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: preg_split(): Compilation failed: POSIX named classes are supported only within a class at offset 0 in /in/oYP7v on line 4 bool(false)
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: POSIX named classes are supported only within a class at offset 0 in /in/oYP7v on line 4 bool(false)
preferences:
268.77 ms | 401 KiB | 356 Q