PHP String Functions

STRING FUNCTIONS

Hi All,

I have added few important string functions. I hope it help you to understand and remember the string functions in PHP.

<?php

$str = "Welcome to Techie Snacks";

$str1 = "here you can find all the technical solutions across the platform";

$str2 = "\t\t New Era begins\t\t";

$email = "xxxx@gmail.com";

/*

  strtoupper

All characters of the String have Converted into UPPERCASE

Syntax: strtoupper($string);

*/

$upper = strtoupper($str);

echo $upper."</br>";

/*

strtolower

All characters of the String have Converted into LOWERCASE

Syntax: strtolower($string);

*/

$lower = strtolower($str);

echo $lower."</br>";

/*

ucfirst

First character of the word have Converted into UPPERCASE

Syntax: ucfirst($string);

*/

$ucupper = ucfirst($str1);

echo $ucupper."</br>";

/*

lcfirst

First character of the word have Converted into LOWERCASE

Syntax: lcfirst($string);

*/

$lcupper = lcfirst($str);

echo $lcupper."</br>";

/*

ucwords

First character of every word in UPPERCASE and all other characters remains unchanged.

Syntax: ucwords($string);

*/

$lcupper = ucwords($str1);

echo $lcupper."</br>";

/*

strlen

Returns and integer value representing the length of string.

It calculates the length of the string including all the whitespace and special characters.

Syntax: strlen($string)

*/

$strlength = strlen($str1);

echo $strlength."</br>";

/*

ltrim

Strip whitespace (or other characters) from the BEGINNING of a string

Syntax: string ltrim ( string $str [, string $character_mask ] );

*/

$ltrimmed = ltrim($str2,"\t");

echo $ltrimmed."</br>";

/*

trim

Strip whitespace (or other characters) from the BEGINNING and END of a string

Syntax: string trim ( string $str [, string $character_mask = " \t\n\r\0\x0B" ] );

*/

$trimmed = trim($str2, "e");

echo $trimmed."</br>";

/* strrev

Reverse a string

Syntax: strrev (string $string);

*/

$reverse = strrev($str);

echo $reverse."</br>";

/* strpos

Find the position of the first occurrence of a substring in a string

Syntax: int strpos ( string $haystack , mixed $needle [, int $offset = 0 ] );

*/

$find   = 'a';

$strpos = strpos($str, $find);

echo $strpos."</br>";

/* strstr

Find the first occurrence of a string

Syntax: string strstr ( string $haystack , mixed $needle [, bool $before_needle = FALSE ] );

*/

$domain_name = strstr($email, '@');

echo $domain_name."</br>";

/* stristr

Find the first occurrence of a string using insensitive

Syntax: string strstr ( string $haystack , mixed $needle [, bool $before_needle = FALSE ] );

*/

$domain_name = stristr($str1, 'H');

echo $domain_name."</br>";

?>

OUTPUT:

WELCOME TO TECHIE SNACKS

welcome to techie snacks

Here you can find all the technical solutions across the platform

welcome to Techie Snacks

Here You Can Find All The Technical Solutions Across The Platform

65

New Era begins

New Era begins

skcanS eihceT ot emocleW

20

@gmail.com

here you can find all the technical solutions across the platform