The meaning of explode function in php

PHP explode() function splits the string into an array according to the specified delimiter (or regular expression), and the return value is an array. Usage includes: Use commas to separate strings: explode(",", "apple,banana,cherry") Use regular expressions to separate strings: explode("-", "123-456-7890") Limit the number of returned array elements Number: explode(",", "apple,banana,cherry", 2) will only return ["apple", "banana"]

PHP explode() function

explode() function is used to split a string into arrays according to specified characters or regular expressions.

Syntax:

<code class="php">array explode(string delimiter, string string, int limit)</code>

Parameters:

• delimiter: Separate characters or regular expressions expression.
• string: The string to be split.
• limit: Optional parameter, specifies the number of elements in the returned array. Default is -1 (no limit).

Return value:

An array containing the split string.

Usage:

explode() function splits the string into an array according to the specified delimiter. For example:

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

print_r($arr);</code>

Output:

<code>Array
(
    [0] => Hello
    [1] =>  world!
)</code>

Example:

• Split the string by commas:

<code class="php">$str = "apple,banana,cherry";
$arr = explode(",", $str);</code>

• Split the string according to the regular expression:

<code class="php">$str = "123-456-7890";
$arr = explode("-", $str);</code>

• Limit the number of elements in the returned array:

<code class="php">$str = "apple,banana,cherry";
$arr = explode(",", $str, 2);</code>

This will only return an array of two elements, i.e. ["apple", "banana"].

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