Blog : PHP strspn() Function

PHP strspn() Function

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 Complete PHP String Reference
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Definition and Usage
The strspn() function returns the number of characters found in the string that contains only characters from the charlist.

Syntax
strspn(string,charlist,start,length)  

Parameter Description
string Required. Specifies the string to search
charlist Required. Specifies the characters to find
start Optional. Specifies where in the string to start
length Optional. Defines the length of the string


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Tips and Notes
Note: This function is binary safe.


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Example 1
echo strspn("Hello world!","kHlleo");
?>  

The output of the code above will be:

5  


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Example 2
echo strspn("abcdefand","abc");
?>  

The output of the code above will be:

3