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<?php $str='亜 飛行機  費 ひひ ほほ ほほほほ '; $str=trim($str); $arr=preg_split('/[:space:]+/',$str,-1,PREG_SPLIT_NO_EMPTY); var_dump($arr);
Output for 4.3.11 - 7.1.0
Warning: preg_split(): Compilation failed: POSIX named classes are supported only within a class at offset 0 in /in/lqD08 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/lqD08 on line 4 bool(false)