String Manipulation In Php

There are instances where you need to manipulate<?php
the string either it was inputted or taken from the$string = “This tutorial is very useful for
database. This tutorial will help you find out whatnewbies”;
string manipulation function you can use.$newstring = str_replace(”useful”,
What is a String?“difficult”, $string );echo $newstring;
In PHP, and every other flavor of Web programming,?>
a string is a variable contained between quotes withThe str_replace() function takes 3 parameters. The
a literal value. For example, $number = “2” isfirst parameter is the piece of text you want to
a string variable, whereas $number = 2 is not. Thereplace. The second is the text that will replace the
first value is seen as text only, the latter as aoriginal. The third parameter tells PHP what value to
numeric value. Simply put, a string is a text variable.do the find and replace on.
1. ucwords - this is used to convert a phrase or4. strpos – find position of first occurrence of a
sentence into a title format.string
<?phpSyntax: int strpos ( string $haystack
$string =”string manipulation in php”;echo, mixed $needle [, int $offset = 0 ] )
ucwords($string);<?php
?>$string = “Hello World”;echo “The word
2. strtoupper – this is used to capitalize everyWorld is at position number:
letter in a string.“.strpos($string,”World”);
<?php?>
$string =”string manipulation in php”;echo5. substr – Return part of a string
strtoupper($string);Syntax: string substr ( string $string , int $start
?>[, int $length ] )
2. strtolower – this is used to bring all letters in a<?php
string to lowercase.$string = “Hello World”;
<?php$substring = substr($string,6);echo $substring;
$string =”String Manipulation in PHP”;echo?>
strtolower($string);The example above will display the word
?>“World”.
3. str_replace –  this function is used to replaceI will post more of those functions in my next
a certain substring in a stringtutorial.