PHP: stripos() function


The stripos() function is used to determine the numeric position of the first occurrence of a string inside another string.


(PHP 5)


 stripos(main_string, search_string, start_position)


Name Description Required /
main_string Specifies the string to examined. Required String
search_string Specifies the string to search with. Required String
start_position Sets the starting position of the first string. Optional Integer

Return value:

The position.

Value Type: Integer.

Pictorial Presentation



echo stripos('W3RESOURCE.COM', 'W3');



View the example in the browser

See also

PHP Function Reference

Previous: stripcslashes
Next: strlen

PHP: Tips of the Day

PHP: How to write to the console in PHP?


On Firefox you can use an extension called FirePHP which enables the logging and dumping of information from your PHP applications to the console. This is an addon to the awesome web development extension Firebug.

  • http://www.studytrails.com/blog/using-firephp-in-firefox-to-debug-php/


However if you are using Chrome there is a PHP debugging tool called Chrome Logger or webug (webug has problems with the order of logs).

More recently Clockwork is in active development which extends the Developer Tools by adding a new panel to provide useful debugging and profiling information. It provides out of the box support for Laravel 4 and Slim 2 and support can be added via its extensible API.

Using Xdebug

A better way to debug your PHP would be via Xdebug. Most browsers provide helper extensions to help you pass the required cookie/query string to initialize the debugging process.

  • Chrome - Xdebug Helper
  • Firefox - The easiest Xdebug
  • Opera - Xdebug
  • Safari - Xdebug Toggler

Ref : https://bit.ly/3ck9rFg