PHP explode
PHP explode is practically the opposite of implode. This divides a string in substrings that are stored in an array
This function receives 3 parameters, the delimiter (string) that is where the string will be cut, another one that is the string and a third parameter that is optional called limit.
Explode Syntaxis
Sintaxis / Sintaxexplode($delimiter,$string,$limit)
$delimiter
– Is a string that contains the character or string of character where the string will be cut.
$string
– the string where explode will be implemented.
$limit
– if it’s used, explode will return the quantity of elements specified in $limit in the array and the last one is the rest of the string. In case that $limit have negative value will return the array without quantity of elements specified in $limit.
Examples
Imagine that we have a URL, and we want to get a value from it.
with variable $limit not specified<?php $url = "hombres/camisetas/rojas"; $array = explode("/",$url); echo $array[0]."\n"; echo $array[1]."\n"; echo $array[2]."\n"; ?>
hombres camisetas rojas
Using $limit
$limit=2<?php $url = "hombres/camisetas/rojas"; $array = explode("/",$url,2); var_dump($array); ?>
array(2) { [0]=> string(7) "hombres" [1]=> string(15) "camisetas/rojas" }
Let’s change $limit= -2
explode example with $limit=-2<?php $url = "hombres/camisetas/rojas"; $array = explode("/",$url,-2); var_dump($array); ?>
array(1) { [0]=> string(7) "hombres" }
In last example we will change $limit=-1 to understand what does $limit
Example with $limit=-1<?php $url = "hombres/camisetas/rojas"; $array = explode("/",$url,-1); var_dump($array); ?>
array(2) { [0]=> string(7) "hombres" [1]=> string(9) "camisetas" }