How to use php explode function?

php explode function is used to break up strings into arrays. Its syntax is explode(separator, string, limit). The parameter separator is required and specifies where to split the string; string is required and refers to the string to be split.

#How to use php explode function?

Definition and usage

explode() function breaks up a string into an array.

Note: The "separator" parameter cannot be an empty string.

Note: This function is binary safe.

Syntax

explode(separator,string,limit)

Parameters

separator Required. Specifies where to split the string.

string Required. The string to split.

limit Optional. Specifies the number of array elements to be returned.

Possible values:

Greater than 0 - Returns an array containing at most limit elements

Less than 0 - Returns an array containing all but the last -limit elements Array

0 - Returns an array containing one element

Return value: Returns an array of strings

PHP Version: 4

Update log:

In PHP 4.0.1, the limit parameter is added. In PHP 5.1.0, support for negative limits was added.

Example 1

Use the limit parameter to return some array elements:

<?php
$str = &#39;one,two,three,four&#39;;
// 零 limit
print_r(explode(&#39;,&#39;,$str,0));
// 正的 limit
print_r(explode(&#39;,&#39;,$str,2));
// 负的 limit
print_r(explode(&#39;,&#39;,$str,-1));
?>

Output:

Array ( [0] => one,two,three,four ) Array ( [0] => one [1] => two,three,four ) Array ( [0] => one [1] => two [2] => three )

Example 2

Break the string into an array:

<?php
$str = "Hello world. I love Shanghai!";
print_r (explode(" ",$str));
?>

Output:

Array ( [0] => Hello [1] => world. [2] => I [3] => love [4] => Shanghai! )

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