摘要：foreach语法表达：foreach（$array as $value){ echo $value} $strtest = "my test instance"; $array = explode("t",$strtest); #分割字符串 foreach ($array as $value) { echo $value.""; } echo implode("t",$array).""; #连接字符串 echo strtok($strtest,'t').""; #根据字符截取字符串 echo substr($strtest,1,5).""; #根据位置和长度截取字符串 $inttest = similar_text($strtest,"test",&$percent); echo $inttest ." ".$percent.""; #比较字符串的相似度 ech 阅读全文