How to convert string containing '&' into array in php

PHP is a widely used server-side scripting language used for web development. It can be used with HTML to create dynamic web pages and web applications. In PHP, converting a string containing multiple values ​​into an array is a common operation. This article will introduce how to use PHP to convert a string containing "&" into an array.

1. Use the explode() function

The explode() function is a function in PHP used to convert a string into an array. It splits the string into array elements and returns them.

For a string containing "&", you can use the explode() function to split it into multiple values. The sample code is as follows:

$str = "apple&banana&orange";
$arr = explode("&", $str);
print_r($arr);

The output of the above code is:

Array
(
    [0] => apple
    [1] => banana
    [2] => orange
)

2. Use the parse_str() function

The parse_str() function is a function in PHP used to parse URL query strings and convert them into arrays. It allocates the keys and values ​​in the string to the array. The sample code is as follows:

$str = "fruit[]=apple&fruit[]=banana&fruit[]=orange";
parse_str($str, $arr);
print_r($arr['fruit']);

The output of the above code is:

Array
(
    [0] => apple
    [1] => banana
    [2] => orange
)

3. Use the preg_split() function

The preg_split() function is a function in PHP used to split strings according to regular expression matching patterns. It splits the string into an array and returns it.

For a string containing "&", you can use the preg_split() function to split it into multiple values. The sample code is as follows:

$str = "apple&banana&orange";
$arr = preg_split('/&/', $str);
print_r($arr);

The output of the above code is:

Array
(
    [0] => apple
    [1] => banana
    [2] => orange
)

Summary

Converting strings containing "&" into arrays is a common requirement in PHP. This article introduces three methods: using the explode() function, using the parse_str() function and using the preg_split() function. Through the use of these functions, developers can easily convert strings into arrays and perform subsequent operations and processing.

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