问一个查找字符串的函数+正则 $str="7aaa87bbb87ccc87ddd87eee87fff8";想把7、8之间的字符打印出来 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 $str = "7aaa87bbb87ccc87ddd87eee87fff8";$pattern = '/7(.*)8/iU';preg_match_all($pattern, $str, $arr);echo '<pre>';print_r($arr);/*Array( [0] => Array ( [0] => 7aaa8 [1] => 7bbb8 [2] => 7ccc8 [3] => 7ddd8 [4] => 7eee8 [5] => 7fff8 ) [1] => Array ( [0] => aaa [1] => bbb [2] => ccc [3] => ddd [4] => eee [5] => fff ))*/ 我把这些字符这样打印出来..结果就无限循环了..之前也试过类似这样定义while 的条件却行...我想我对while的理解还不够。。希望能指点一下<?php$str = "7aaa87bbb87ccc87ddd87eee87fff8";$pattern = '/7(.*)8/iU';preg_match_all($pattern, $str, $arr);echo '<pre>';$i=0;while($arr){print_r($arr[1][$i]);$i++;}?> 我试着这样写了一下..现在想把显示出来的序号换成链接的标题,比如这段代码<?phpob_start('Content-type: text/html;charset=gb2312');$ch = curl_init();curl_setopt($ch, CURLOPT_URL, 'http://www.baidu.com/s?wd=%E5%8C%97%E4%BA%AC%E5%9C%B0%E9%93%81+%E7%8E%8B%E9%B9%8F&rsv_spt=1&issp=1&rsv_bp=0&ie=utf-8&tn=baiduhome_pg');curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 GTB5');$htmls = curl_exec($ch);$i=0;$pattern ="#baidu.com\/link(.*?)\"#is";preg_match_all($pattern, $htmls, $arr);echo '<pre>';$i=0;while(@$arr[1][$i]){print_r("<href=\"www.baidu.com\/link".$arr[1][$i]."\">".$i."</a><br/>");$i++;}?>想把那些0123456换成该网页的标题。。用正则会不会很困难我想到的就是再进去该链接curl然后取title if语句错误 帮忙解释一下代码! 急求php+在线图片编辑-----------付费 小妹请教前辈如何做三级菜单联动! 滤文章HTML代码 PHP基础问题 一个简单的问题!请务必解答我,要不然我睡不着觉! 显示问题 为啥汉字变成呢“?”号??各位大虾请多指点,(急!!!!!!) 怎么用正则去除a链接当中的某个或多个属性啊 http://www.google.com/loc/json不能查询wifi定位结果 求正则:去除<p>标签里的所有属性样式
$str = "7aaa87bbb87ccc87ddd87eee87fff8";
$pattern = '/7(.*)8/iU';
preg_match_all($pattern, $str, $arr);
echo '<pre>';
print_r($arr);/*Array
(
[0] => Array
(
[0] => 7aaa8
[1] => 7bbb8
[2] => 7ccc8
[3] => 7ddd8
[4] => 7eee8
[5] => 7fff8
) [1] => Array
(
[0] => aaa
[1] => bbb
[2] => ccc
[3] => ddd
[4] => eee
[5] => fff
))*/
我想我对while的理解还不够。。希望能指点一下<?php
$str = "7aaa87bbb87ccc87ddd87eee87fff8";
$pattern = '/7(.*)8/iU';
preg_match_all($pattern, $str, $arr);
echo '<pre>';
$i=0;
while($arr)
{
print_r($arr[1][$i]);
$i++;
}
?>
ob_start('Content-type: text/html;charset=gb2312');
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.baidu.com/s?wd=%E5%8C%97%E4%BA%AC%E5%9C%B0%E9%93%81+%E7%8E%8B%E9%B9%8F&rsv_spt=1&issp=1&rsv_bp=0&ie=utf-8&tn=baiduhome_pg');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 GTB5');
$htmls = curl_exec($ch);
$i=0;
$pattern ="#baidu.com\/link(.*?)\"#is";
preg_match_all($pattern, $htmls, $arr);
echo '<pre>';
$i=0;
while(@$arr[1][$i])
{
print_r("<href=\"www.baidu.com\/link".$arr[1][$i].
"\">".$i."</a><br/>");
$i++;
}
?>想把那些0123456换成该网页的标题。。用正则会不会很困难我想到的就是再进去该链接curl然后取title