PHP实现删除字符串中任何字符的函数
这篇文章主要介绍了PHP实现删除字符串中任何字符的函数,涉及php针对字符串的遍历与截取操作技巧,具有一定参考借鉴价值,需要的朋友可以参考下
本文实例讲述了PHP实现删除字符串中任何字符的函数。分享给大家供大家参考。具体如下:
function delStr($start, $end, $orgenStr) { //读取要删除字符位置的前一部分字符串,并赋值给$temp //strpos读取字符第一次出现的位置 //substr读取指定开始与结束位置的子字符串 //echo $before."—". $last; $temp=$orgenStr; while(strpos($temp, $start) && strpos($temp, $end)){ $temp=substr($temp, 0, strpos($temp, $start)).substr($temp,strpos($temp, $end)+strlen($end));; //读取要删除字符位置的后一部分字符串,然后将前后部分连接,并赋值给$temp //返回最后是字符串 } return $temp; } //应用实例 $a="aaaa12345678bbbbtttttttttttttttttttttaaaa12345678bbbb kkkkkkkkkkkkaaaa12345678bbbbttttttttttttttttttttt"; $b="1234"; $c="5678"; echo delStr($b,$c,$a);
输出为:
aaaabbbbtttttttttttttttttttttaaaabbbbkkkkkkkkkkkkaaaabbbbttttttttttttttttttttt
PS:
一般应用在1234和5678中间有动态内容,可以批量地删除
update:加入了循环删除,可以删除所有符合条件的字符串 .

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