index.php code code example

Example 1: php hello world

echo "Hello World";

Example 2: php in html

Basic PHP Syntax
A PHP script can be placed anywhere in the document.

A PHP script starts with <?php and ends with ?>:

<?php
// PHP code goes here
?>
The default file extension for PHP files is ".php".

A PHP file normally contains HTML tags, and some PHP scripting code.
  
Example
<!DOCTYPE html>
<html>
<body>

<h1>Php in html</h1>

<?php
echo "Hello World!";
?>

</body>
</html>

Example 3: php indexof

strrpos ( string $haystack , mixed $needle [, int $offset = 0 ] ) : int

Example 4: php indexof

strrpos ( string $haystack , mixed $needle [, int $offset = 0 ] ) : int or False return
<?php
$foo = "0123456789a123456789b123456789c";

// Looking for '0' from the 0th byte (from the beginning)
var_dump(strrpos($foo, '0', 0));

// Looking for '0' from the 1st byte (after byte "0")
var_dump(strrpos($foo, '0', 1));

$str = 'This is Main String';
 
if (strpos($str, 'This') !== false) {
    echo 'true';
}

Tags:

Php Example

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