![]() ![]() $length = strlen($string) // lenghtof the string As we can see, we \n the 2 characters, but it will be counted as one while we will pass this as a parameter with the strlen() function. We should be careful while passing a string containing special sequence characters like \n,\t,\r, etc. Use of strlen() with the special sequence character as a string The above line of code given the length output as 16 as ‘WELCOME TO INDIA’ contains 16 characters, including the spaces. We can use the characters, special characters, URL, numeric values, and special sequence characters as part of the given string.Ĭode: $string = "WELCOME TO INDIA" // a stringĮcho strlen($string) // lenghtof the string It takes the string as a parameter and returns the length of that given string. How strlen() Function work in PHP?īefore moving ahead with the strlen, we must have a strong first upon which this function will be applied. There is nothing much with the syntax of this function. ![]() This returns the length of the string, and it will always be an Integer. String: This is the only parameter that takes as a string.Typically, this function is used to display the count of strings or is used with conditional statements. Use of the strlen() Function with Conditional Statements This function can be used in PHP 4.0 and above. This function will return the string's length (in bytes), shown in integer format whenever a successful execution is performed, or returns 0 when the string is empty. An integer value is returned when it becomes true.Īn example of using this strlen() function is as follows: It only takes one parameter, which is certainly imperative to implement this function. Here 'str' means string, and 'len' means length. PHP strlen() function is used to count the length of a given string or check the number of characters in a string. ![]() Output: The length of w3schools.in is: 12. Here is a code snippet that shows the basic approach of writing the logic of counting the string length is: In this tutorial, you will learn about the strlen() function of PHP.Ĭounting String Length Without Using the Predefined Function This can be done either by manually counting each character of the string one by one or using PHP's pre-defined function. PHP Overview PHP Tutorial PHP Introduction PHP Installation PHP Basics PHP Basics PHP Syntax PHP Data Types PHP Variables PHP Constants PHP Print and Echo Statements Operators PHP Operators PHP Arithmetic Operators PHP Assignment Operators PHP Comparison Operators PHP Logical Operators PHP Ternary Operator PHP Concatenation Operators Decision Control Structures PHP Decision Making PHP if else statement PHP elseif statement PHP switch statement Loop Control Structures PHP Looping PHP while loop PHP do-while PHP for loop PHP foreach loop Functions PHP Date and Time PHP Functions PHP String Handling Functions PHP Include and Require PHP Headers PHP File Handling PHP Cookies PHP Sessions PHP Sending Emails Compare Strings In PHP array_diff() Function in PHP array_merge() Function in PHP array_search() Function in PHP eval() in PHP preg_replace() Function in PHP URL Encoding and Decoding with PHP sleep() Function in PHP strlen() Function in PHP ksort() Function in PHP strlen() Function in PHP gettype() Function in PHP Forms PHP GET and POST PHP Server Side Form Validation PHP File Upload PHP Classes and Objects PHP OOP Terminology PHP Access Modifiers What is stdClass in PHP? PHP Inheritance PHP OOP Traits PHP Abstract Classes PHP Constructor PHP Destructor Miscellaneous PHP Arrays PHP RSS Feed PHP Composer Environment Variables in PHP PHP Error HandlingĬounting the length of strings in a program is an essential concept that helps in various coding scenarios. ![]()
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