Count specific or repeated characters in string in PHP; Through this tutorial, i am going to show you how to count specific characters in string or how to count repeated characters in a string php.
How to count specific or repeated characters in a string PHP
Using PHP function substr_count(), you can count specific characters in string or count repeated in a string PHP.
PHP substr_count() Function
The substr_count() function is an inbuilt PHP function that can be used to counts the number of times a substring occurs in a string.
Syntax of PHP substr_count() Function
The basic sytax of substr_count() is:
substr_count(string,substring,start,length)
Parameter of PHP substr_count() Function
Parameter | Description |
---|---|
string | It’s required. Where find occurrences of a substring in a string PHP |
substring | It is necessary. This is a string that will be searched in the original string |
start | Optional. Specifies where in string to start searching. If negative, it starts counting from the end of the string |
length | Optional. Specifies the length of the search |
Example 1 – count specific characters in string
Let you have specific characters in string; And want to count the characters or words in a PHP string. So, you can use the following example to count specific or repeated characters from string in PHP; is as follows:
<?php $string = "php count specific characters in string php"; echo 'output is :- '.substr_count($string,"php"); ?>
Output of the above given Code; is as follows:
output is :-2
Example 2 – find all occurrences of a substring in a string PHP
To find all occurrences of a substring in string PHP. You can see the below example for that:
<?php // PHP program to count number of times // sub-string appears in original string. $originalStr = "how to count sub-string in string PHP"; $subString = "string"; $res = substr_count($originalStr, $subString); echo($res); ?>
Output of the above given Code; is as follows:
output is :-2
Conclusion
Count specific or repeated character from string in PHP’ In this tutorial, you have learned how to count substring in string PHP by using substr_count and without using substr_count() function in PHP.