PHP 常用实例?php $csv= ;foreach($dataas$row){$csv.=join( , ,$row). n ;}echo $csv;? ?phpfunctiontoCSV(array $data,array $colHeaders=array(),$asString=false){$str...

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filesize(),只能获取本地文件大小,不能获取远程文件大小:.file_get_contents(),获取文件内容,strlen()获取内容大小:...www.cnblogs.com