How to find number of characters in a string in PHP

Posted By Bajarangi soft , Posted On 31-12-2020

We have given a string and the task is to count number of characters in a string str in PHP. In order to do this task, we have the following methods in PHP:

Method 1: Using strlen() Method: The strlen() method is used to get the length of a given string str. Length of the string including all the white spaces and special characters in this method.
Syntax:

strlen( $string )

Example 1:

<?php

//php program to count all characters in s string
$str="company website";

   $leng=strlen($str);

   //printing the result
   echo $leng;
   ?>

Method 2: Using mb_strlen() Method: The mb_strlen() method is used to return the number of characters in a string having character encoding. A multi-byte character is counted as

Syntax:

mb_strlen($str, $encoding);

Note:

sudo apt install php7.0-mbstring

Example 2:

<?php
   //php program to count all characters in a string
   $str="software company";

   //mb_strlen function to get the length of string
   $len=mb_strlen($str);

   echo $len;
   ?>

Method 3: Using iconv_strlen() Method: The iconv_strlen() method is used to get the character count of a string, as an integer.
Syntax:

int iconv_strlen( string $str, 
    string $charset = ini_get("iconv.internal_encoding"))

Example 3:

<?php
// PHP program to count number
// of characters in a string

$str = " IT tech company ";

// Using iconv_strlen() function
// to get the length of string
$len = iconv_strlen($str);

// Printing the result
echo $len;
?>

Method 4:Using grapheme_strlen() Method: The grapheme_strlen() method is used to get the string length in grapheme units (not bytes or characters).
Syntax:

int grapheme_strlen(string $input)

Example:

<?php
// PHP program to count number
// of characters in a string

$str = " Bajarangi software company ";

// Using grapheme_strlen() function
// to get the length of string
$len = grapheme_strlen($str);

// printing the result
echo $len;
?>