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1. www.php.net › manual › enPHP: strspn - Manual

   www.php.net › manual › en

   strspn (PHP 4, PHP 5, PHP 7, PHP 8) strspn — Finds the length of the initial segment of a string consisting entirely of characters contained within a given mask

2. www.w3schools.com › php › func_string_strspnPHP strspn () Function - W3Schools

   www.w3schools.com › php › func_string_strspn

   The strspn () function returns the number of characters found in the string that contains only characters from the charlist parameter. Tip: Use the strcspn () function to return the number of characters found in a string before any part of the specified characters are found.

   • charlist: Required. Specifies the characters to find
   • string: Required. Specifies the string to search

   • length: Optional. Defines the length of the string

3. www.geeksforgeeks.org › php › php-strspn-functionPHP strspn () Function - GeeksforGeeks

   www.geeksforgeeks.org › php › php-strspn-function

   Jul 11, 2025 · The strspn () function is an in-built function in PHP which finds the length of the initial segment of a string consisting entirely of characters contained within a given list of characters passed as a parameter to the function.

4. www.w3resource.com › php › function-referencePHP strspn () function - w3resource

   www.w3resource.com › php › function-reference

   Oct 4, 2024 · The strspn() function is used to find the length of the initial segment of a string which matches characters from a second string.

5. www.tutorialspoint.com › php › php_function_strspnPHP strspn Function - Online Tutorials Library

   www.tutorialspoint.com › php › php_function_strspn

   Discover how to use the PHP strspn function with examples and detailed explanation of its syntax and parameters.

6. www.w3docs.com › learn-php › strspnStrspn () - W3docs

   www.w3docs.com › learn-php › strspn

   The strspn() function in PHP is used to calculate the length of the initial segment of a string that consists entirely of characters contained within a

7. People also ask

   What is strspn() function?

   • The strspn () function returns the number of characters found in the string that contains only characters from the charlist parameter. Tip: Use the strcspn () function to return the number of characters found in a string before any part of the specified characters are found. Note: This function is binary-safe. Required.

   PHP strspn() Function - W3Schools

   www.w3schools.com/php/func_string_strspn.asp

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   How does strspn examine a string if offset is negative?

   • If offset is given and is negative, in the strspn() function, it will begin examining string at the offset 'th position from the end of string . The length of the segment from string to examine. If length is given and is non-negative, then string will be examined for length characters after the starting position.

   PHP: strspn - Manual

   www.php.net/manual/en/function.strspn.php

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   How does strcspn function work?

   • strcspn function works similarly, but it walks down a string (str) until it finds a character in the reject set (a set of characters to be rejected). It then returns the length of the string up to that point. The second parameter is a set of allowed characters. I hope this example will help in understanding the concept of strspn() and strcspn().

   PHP: strspn - Manual

   www.php.net/manual/en/function.strspn.php

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8. www.tutorialrepublic.com › php-strspn-functionPHP strspn () Function - Tutorial Republic

   www.tutorialrepublic.com › php-strspn-function

   PHP strspn () Function Topic: PHP String Reference Prev | Next Description The strspn() function returns the number of characters present in the initial part of the string that contains only characters specified in the mask (list of allowable characters). The following table summarizes the technical details of this function.