How can I convert a string to an array? For instance, I have this string:
$str = 'abcdef';
And I want to get:
array(6) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(1) "c"
[3]=>
string(1) "d"
[4]=>
string(1) "e"
[5]=>
string(1) "f"
}
array([0] => 'string')You can loop through your string and return each character or a set of characters using substr in php. Below is a simple loop.
$str = 'abcdef';
$arr = Array();
for($i=0;$i<strlen($str);$i++){
$arr[$i] = substr($str,$i,1);
}
/*
OUTPUT:
$arr[0] = 'a';
$arr[1] = 'b';
$arr[2] = 'c';
$arr[3] = 'd';
$arr[4] = 'e';
$arr[5] = 'f';
*/
Every String is an Array in PHP
So simply do
$str = 'abcdef';
echo $str[0].$str[1].$str[2]; // -> abc
var_dump(is_array("a string")); and you will see it is NOT an array.
[] on a string in fact just gives you access to the characters at those positions, the variable type remains as is and is not converted to or from an array if it wasn't already. It's like how "their" and "there" sound the same in English but have different meanings...Note that starting with php 5.5 you can refer to string characters by array indices, which in most cases prevents need for the solution(s) above.
$str = 'abdefg';
echo $str[4]; // output: f
Other solution:
$string = 'abcdef';
$arr = [];
for($i=0;$i<strlen($string);$i++){
$arr[] = substr($string,$i,1);
}
<?php
$str = "Hello Friend";
$arr1 = str_split($str);
$arr2 = str_split($str, 3);
print_r($arr1);
echo "<br/>";
print_r($arr2);
?>
$str[0]would return 'a'. You cannot use foreach or any of the array functions on it though then.