PHP similar to IndexOf method [go]

PHP Strpos () function

PHP String function

Definition and usage

The Strpos () function returns the position of the first occurrence of a string in another string.

If the string is not found, false is returned.

Grammar

Strpos (String,find,start)

Parameters	Description
String	Necessary. Specifies the string to be searched.
Find	Necessary. Specifies the character to find.
Start	Optional. Specify where to start the search.

Hints and Notes

Note: The function is case-sensitive. Use the Stripos () function if you want to search for case insensitive.

Example

<?php
strpos("Hello world!","wo");
?>

Output:

6

PHP Strripos () function

PHP String function

Definition and usage

The Strripos () function finds the position of the last occurrence of a string in another string.

If successful, returns the position, otherwise false.

Grammar

Strrpos (String,find,start)

Parameters	Description
String	Necessary. Specifies the string to be searched.
Find	Necessary. Specifies the character to find.
Start	Optional. Specify where to start the search.

Hints and Notes

Note: The function is not case sensitive. For case-sensitive lookups, use Strrpos ().

Example

<?php
strripos("Hello world!","WO");
?>

Output:

6

PHP similar to IndexOf method [go]