PHP: Split strings based on a character
May 27, 2022 ‐ 2 min read
The way to split up a string on a certain character into an array of substrings is by means of the built-in PHP string function
Consider the following example in which a URL path is split on a slash (
'/') into multiple URL segments.
<?php $path = 'blog/php/split-strings'; $segments = explode('/', $path); print_r($segments); //=> Array //=> ( //=>  => blog //=>  => php //=>  => split-strings //=> )
explode() function requires a delimiter string as a first argument and the string to split as its second argument.
explode(string $separator, string $string): array
It is not obligatory to use a single character as a separator, it is perfectly fine to split the string on
https:// for example.
Potentially we can supply an optional third argument to
explode() as well, this is the maximum amount of items we wish get returned in our array of results.
<?php $path = 'blog/php/split-strings'; $segments = explode('/', $path, 2); print_r($segments); //=> Array //=> ( //=>  => blog //=>  => php/split-strings //=> )
In contrary to exploding a string based on a character, we can also implode a string. This implodes an array of strings together into one string joined by a specified character.