What is the function to convert string to array in php

The functions in php that convert strings to arrays include: 1. str_split() function, syntax "str_split(string,length)"; 2. explode() function, which can return a string array; 3. preg_split() function.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Convert a string to an array in PHP The functions used are str_split(), explode(), preg_split().

PHP str_split() function

str_split() function splits a string into an array.

Syntax

str_split(string,length)

Return value:

If length is less than 1, the str_split() function will return FALSE. If length is greater than the length of the string, the entire string will be returned as the only element of the array.

Example:

<?php
$str="Hello";
var_dump($str);
$arr=str_split($str);
var_dump($arr);
?>

PHP explode() function

explode() function uses a String splits another string and returns an array of strings.

Syntax

explode(separator,string,limit)

Return value: Returns a string array.

Example:

<?php
$str="Hello world !";
var_dump($str);
$arr=explode(" ",$str);
var_dump($arr);
?>

PHP preg_split() function

preg_split function separates characters by a regular expression string.

Syntax

array preg_split ( string $pattern , string $subject [, int $limit = -1 [, int $flags = 0 ]] )

Separate the given string by a regular expression.

Parameter description:

Return value

Returns an array composed of substrings obtained after using pattern boundaries to separate subject.

Example:

<?php
$str = &#39;hypertext language programming&#39;;
var_dump($str);
$chars = preg_split(&#39;/ /&#39;, $str, -1, PREG_SPLIT_OFFSET_CAPTURE);
var_dump($chars);
?>

Recommended learning: "PHP Video Tutorial"

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