Returns the length of a string (in bytes) on success, and 0 if the string is empty: PHP Version: 4+

Pads a string to a new length: str_repeat() Repeats a string a specified number of times: str_replace() Replaces some characters in a string (case-sensitive) str_rot13() Performs the ROT13 encoding on a string: str_shuffle() Randomly shuffles all characters in a string: str_split() Splits a string into an array: str_word_count()

PHP's strlen function behaves differently than the C strlen function in terms of its handling of null bytes ('\0'). In PHP, a null byte in a string does NOT count as the end of the string, and any null bytes are included in the length of the string. For example, in PHP: strlen( "te\0st" ) = 5 In C, the same call would return 2.

str_ends_with — Checks if a string ends with a given substring; str_getcsv — Parse a CSV string into an array; str_increment — Increment an alphanumeric string; str_ireplace — Case-insensitive version of str_replace; str_pad — Pad a string to a certain …

Apr 3, 2025 · PHP provides a wide variety of built-in string functions. These functions perform various operations such as string transformations, character manipulations, encoding and decoding, and formatting, making string handling simpler and more efficient in PHP. In this article, we will discuss the most common PHP string functions.. PHP String Functions

Sep 5, 2024 · The strlen() is a built-in function in PHP which returns the length of a given string. It calculates the length of the string including all the whitespaces and special characters. Syntax: strlen($string); Parameters: This parameter represents the string whose length is needed to be returned. Return Value:

Jan 9, 2024 · To get started, let’s explore some fundamental PHP string functions: echo – Outputs one or more strings. strlen() – Returns the length of a string. str_replace() – Replaces occurrences of a search string with a replacement string. strtolower() and strtoupper() – Converts a string to lowercase and uppercase respectively.

To count the length of a given string or to check the number of characters in a string, the PHP strlen () function is used. It only takes one parameter, which is, of course, a mandatory one to implement this function. The length of the string is returned when it becomes successful.

PHP function strlen returns number of bytes inside the string including blank space. If you want blank space to be removed then you can apply string replace function str_replace to the string before applying strlen. <?Php $string="This is my string"; echo "Length of the string = ".strlen($string); ?> The output of above code is 17 Length of the ...

To get the length of a string in PHP, you can use strlen () function. Pass the string as argument to strlen () and the function returns an integer representing the length of string. In the following example, we will take a literal and find its length using strlen () function.