问题描述

正则表达式替换{}请教

http://www.hao123.com/down.php?pid=4014&Id={a:0}&aaa={b:222}请教这种正则怎么替换？
{a:0}替换成1，{b:222}替换成2

解决方案

 $url="http://www.hao123.com/down.php?pid=4014&Id={kk:0}&aaa={b:222}";
$arr=array(
'kk'=>1,
'b' =>2,
'c' => 3,
);
foreach ($arr as $k => $value) {
if(strstr("$url","$k:")){
$url=preg_replace("/\{".$k.":\d+\}/",$value,$url);
}
}
echo $url;

解决方案二：

js

 'http://www.hao123.com/down.php?pid=4014&Id={a:0}&aaa={b:222}'.replace(/{a:0}/,'1').replace(/{b:222}/,'2')

解决方案三：

如果a，b都是变量呢？
$url="http://www.hao123.com/down.php?pid=4014&Id={kk:0}&aaa={b:222}";
$arr=array(
'kk'=>1,
'b' =>2,
'c' => 3,
);
foreach ($arr as $k => $value) {
if(strstr("$url","$k")){
$url=preg_replace("/{.*?:.*?}/",$value,$url);
}
}
echo $url;

这样的话，都替换成一个了，http://www.hao123.com/down.php?pid=4014&Id=1&aaa=1，显然是错的，
应该是：http://www.hao123.com/down.php?pid=4014&Id=1&aaa=2；