Like in C, can I use a string as an array?
For example:
$a = "abcd";
for ($b = 0; $b <= 3; $b++) {
echo $a[$b];
}
Is a string in PHP an array, or based on arrays as in C?
4 Answers
Actually yes, but you have to use another syntax:
$a = "abcd";
for ($b = 0; $b <= 3; $b++) {
echo $a{$b};
}
1 Comment
Warface
echo $a[$b]; works too ;)You can go through the whole string by checking on the string length, and getting each letter by using the substr() function:
$a = "abcd";
for($b = 0; $b <= strlen($a); $b++){
echo substr($a, $b, 1).'<br>';
}
Hope this helps!
Comments
You should use str_split($string) in order to convert a string to an array
For instance:
var_dump(str_split("abc"));
will translate into
array(3) {
[0]=> string(1) "a"
[1]=> string(1) "b"
[2]=> string(1) "c"
}
Comments
<?php
$str = "Lorem ipsum";
if (is_array($str)) {
echo "$str is array";
}
else {
echo "$str is not array";
}
?>
Result:
Lorem ipsum is not array
so....
3 Comments
user1801625
So how its work I mean in C I know that its save in memory like array
Vladimir Gordienko
An Array is collection of elements of similar type which are referred by a common name.Each element is accessed by its value. First element has index 0 and last element has index which is 1 less than the size of array. Declaration of Array:- data_type array_name[size]; String is collection of characters. So it is called character array. Each string is terminated by null character('')
Vladimir Gordienko
so actual, yes, string located in memory like array, but it is not php array, it is isolated case of php array!
$string[123]but also provide for$string{123}to disambiguate.