How to convert php string into array object

In PHP, we often need to operate strings, and sometimes we need to convert a string into an array object for operation. In this article, we will introduce a few different ways to convert PHP strings into array objects.

1. Using the explode() function

The explode() function is a common function in PHP for processing strings. This function splits a string into an array according to the specified characters and returns the array. The following example shows how to use the explode() function to convert a string into an array object:

$string = "apple,banana,orange";
$array = explode(",", $string);

var_dump($array);

In this example, we define a string $string, and then use the explode() function to convert it according to the comma Split into array $array. Finally, we use the var_dump() function to output the contents of $array.

2. Using the str_split() function

The str_split() function is also a function that processes strings in PHP. It splits a string into a set of arrays of single characters. and returns the array. The following example shows how to use the str_split() function to convert a string into an array object:

$string = "Hello World";
$array = str_split($string);

var_dump($array);

In this example, we define a string $string and then use the str_split() function to split it Divided into an array of single characters $array. Finally, we use the var_dump() function to output the contents of $array.

3. Use the preg_split() function

The preg_split() function is a function that processes regular expressions in PHP. It can split a string into an array according to the specified pattern. . The following example shows how to use the preg_split() function to convert a string into an array object:

$string = "app1e,ban@na,or(ange";
$array = preg_split("/[\s,]+/", $string);

var_dump($array);

In this example, we define a string $string, which contains a string consisting of commas, spaces, Words separated by brackets and @ symbols. Then, we use the preg_split() function to split this string into an array $array according to the delimiter. Finally, we use the var_dump() function to output the contents of $array.

4. Use the json_decode() function

The json_decode() function can convert a JSON format string into a PHP array or object. The following example shows how to use the json_decode() function to convert a string into an array object:

$string = '{"name":"Tom","age":22}';
$array = json_decode($string, true);

var_dump($array);

In this example, we define a JSON format string $string, which contains a string named Tom's person's name and age. Then, we use the json_decode() function to convert the $string string into a PHP array $array. Finally, we use the var_dump() function to output the contents of $array.

In summary, here are a variety of methods for converting PHP strings into array objects, including using explode(), str_split(), preg_split() and json_decode() functions. Based on actual needs, we can choose the method that best suits us to operate PHP string and array objects.

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