PHP正则表达式怎么表示中括号

Question

{"i":"20121019-023","b":"94243"} 怎么用php返回值20121019-023和94243

Answer 1

楼上解析json的方法已经足够了，但是不知道你实际问题的需求，下面是正则实现。

<?php
$str = '{"i":"20121019-023","b":"94243"}';

preg_match_all('/{"i":"(.*?)","b":"(.*?)"/i',$str,$m);

var_dump($m);

//array(3) { [0]=> array(1) { [0]=> string(31) "{"i":"20121019-023","b":"94243"" } [1]=> array(1) { [0]=> string(12) "20121019-023" } [2]=> array(1) { [0]=> string(5) "94243" } }

//End_php

Answer 2

$str = '{"i":"20121019-023","b":"94243"}';
$arr = json_decode($str);
echo $arr->i;
echo "<br/>";
echo $arr->b;
如果能帮到你，请采纳，谢谢！

Answer 3

将json数据decode一下就可以读出来了，如下

<?php
$test='{"i":"20121019-023","b":"94243"}';
$a=json_decode($test);
echo $a->i.'<br/>';
echo $a->b;
?>