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 .