in_array函数的用法_PHP教程

$ext = array('avi','wmv','asf','mov','rm','ra','ram','mp3','wma','swf');

if(in_array('mp3',$ext) ){

echo '存在';

}else{

echo '不存在';

}

http://www.bkjia.com/PHPjc/631376.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/631376.htmlTechArticlein_array函数的用法 in_array函数判断数组中是否存在M字符,下面我举个例子说明: ?php $ext=array('avi','wmv','asf','mov','rm','ra','ram','mp3','wma','swf'); if...