Question

我有此代码：

<?php
$str ='[ "spiderman", "xmen", "barbie", "avengers" ]';

$array= str_replace("[", "",$str);
$array= str_replace("]", "",$str);

$array =explode(',',$array);


print_r($array);

它的意思是输出：

Array
(
    [0] =>  spiderman
    [1] =>  xmen
    [2] =>  barbie
    [3] =>  avengers
)

相反，它输出

Array
(
    [0] => [ "spiderman"
    [1] =>  "xmen"
    [2] =>  "barbie"
    [3] =>  "avengers" 
)

为什么它不能完全替换[的所有实例？我怎么做得好？ ................................................... ................................................... ................................................... ......

Answer 1

这是json格式。请勿使用str_replace和explode对其进行解码。您可以使用json_decode进行解析。

$str ='[ "spiderman", "xmen", "barbie", "avengers" ]';
$arr = json_decode($str);

echo "<pre>";
print_r( $arr );
echo "</pre>";

这将导致：

Array
(
    [0] => spiderman
    [1] => xmen
    [2] => barbie
    [3] => avengers
)

Answer 2

您的字符串是json，但是适合您的代码的形式是：

<?php

$str ='[ "spiderman", "xmen", "barbie", "avengers" ]';

$array= str_replace("[", "",$str);
$array= str_replace("]", "",$array);

$array =explode(',',$array);


print_r($array);

结果：

Array (
    [0] =>  "spiderman"
    [1] =>  "xmen"
    [2] =>  "barbie"
    [3] =>  "avengers"

)

Str_replace无法完全替换

2 个答案: