PHP : substr_count() function

substr_count() function

Description

The substr_count() function is used to count the number of times a substring occurs in a string. Note that substring is case sensitive.

Version

(PHP 4 and above)

Syntax

substr_count(string1, string2, nstart, nlength)

Parameters

Name	Description	Required / Optional	Type
string1	The string to search in.	Required	String
string2	The substring to search for.	Required	String
nstart	The position where string to start searching.	Optional	Integer
nlength	The length of the string to be searched for.	Optional	Integer

Return value

Returns a number.

Value Type : Integer.

Example :

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1. <?php  
2. $string1="Welcome to w3resource.com";  
3. echo substr_count($string1,'co');   
4. echo substr_count($string1,'co',4);   
5. echo substr_count($string1,'co',4,4);   
6. ?>  

Output

2
1
0