How to convert php string into array

The content of this article is to share with you how to convert PHP strings into arrays. As a PHP programmer, Xinyi’s first reaction is to think of the two functions explode() and implode(). Shinichi also uses the function inside to convert it into an array. has certain reference value. Friends in need can refer to

con[1]=28&selt[1]=1&con[2]=29&selt[2]=4&con[3]=26&selt[3]=4
&con[4]=30&selt[4]=2&con[5]=4&selt[5]=1&con[6]=11&con[7]=12

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. The above is the string that netizens need to convert into a PHP array; The following is also the PHP conversion code provided by Xinyi

<?php
$str = &#39;con[1]=28&selt[1]=1&con[2]=29&selt[2]=4&con[3]=26&selt[3]=4&con[4]=30&selt[4]=2&con[5]=4&selt[5]=1&con[6]=11&con[7]=12&#39;;
$arr = explode(&#39;&&#39;,$str);
$arr2 = array();
foreach($arr as $k=>$v){
        $arr = explode(&#39;=&#39;,$v);
        $arr2[$k] = $arr[1];
}
print_r($arr2);
?>
//输出
Array
(
    [0] => 28
    [1] => 1
    [2] => 29
    [3] => 4
    [4] => 26
    [5] => 4
    [6] => 30
    [7] => 2
    [8] => 4
    [9] => 1
    [10] => 11
    [11] => 12
)
//第二个
<?php
$str = &#39;con[1]=28&selt[1]=1&con[2]=29&selt[2]=4&con[3]=26&selt[3]=4&con[4]=30&selt[4]=2&con[5]=4&selt[5]=1&con[6]=11&con[7]=12&#39;;
$arr = explode(&#39;&&#39;,$str);
$arr2 = array();
foreach($arr as $k=>$v){
        $arr = explode(&#39;=&#39;,$v);
        $arr2[$arr[0]] = $arr[1];
}
print_r($arr2);
?>
//输出
Array
(
    [con[1]] => 28
    [selt[1]] => 1
    [con[2]] => 29
    [selt[2]] => 4
    [con[3]] => 26
    [selt[3]] => 4
    [con[4]] => 30
    [selt[4]] => 2
    [con[5]] => 4
    [selt[5]] => 1
    [con[6]] => 11
    [con[7]] => 12
)

Xinyi's PHP code can also solve the problem of converting strings into arrays. Finally, phper netizens should find out in the manual that the parse_str() function can convert a string into a PHP array; let’s introduce the description of the parse_str() function so that you can have a good impression in your mind.
The parse_str() function converts the query Strings are parsed into variables.

parse_str(string,array)
string:需要转换的字符串；
array:返回到一个数组中；
如果没有设置array的话就覆盖同名变量

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