Advertisement
Google Ad Slot: content-top
PHP Strings
Strings are sequences of characters used to store and manipulate text. PHP provides a variety of functions for working with strings, making it easy to create, modify, and manipulate text content.
1. Creating Strings
Single Quoted Strings:
The simplest way to create a string. It does not interpret variables or special characters (except for \\ and \').
Example
<!DOCTYPE html>
<html>
<body>
<?php
echo 'This is a simple string \n john.';
?>
</body>
</html>
Double Quoted Strings:
More flexible. They parse variables and escape sequences like \n (newline).
Example
<?php
$name = "John";
$string = "Hello, $name";
$newline = "Line 1\nLine 2";
$str = 'This is a \'simple\' string';
echo $string."<br>";
echo $newline."<br>";
echo $str;
?>
Common String Functions
Method |
Description |
Example |
|---|---|---|
strlen() |
Returns the length of a string |
echo strlen("Hello World!"); // Outputs: 12
|
str_word_count() |
Returns counts the number of words in a string |
echo str_word_count("Hello world!"); // Outputs: 2
|
strpos() |
Finds the position of the first occurrence of a substring in a string |
echo strpos("Hello World", "World"); // Outputs: 6
|
substr() |
Returns a portion of a string |
echo substr("Hello World", 0, 5); // Outputs: Hello
|