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php如何截取指定字符串前后位置的内容$str = 'aaaaaa,vvvvvv,ccccc,dddd'; $str = explode(",", $str); echo $...
$a = '【2019】'; $b = '【'; $c = '】'; echo GetBetween($a,$b,$c); //输出 2019public function GetBetween...