Blog : PHP strstr() Function

 PHP strstr() Function

--------------------------------------------------------------------------------
 Complete PHP String Reference
--------------------------------------------------------------------------------

Definition and Usage
The strstr() function searches for the first occurrence of a string inside another string.

This function returns the rest of the string (from the matching point), or FALSE, if the string to search for is not found.

Syntax
strstr(string,search)  

Parameter Description
string Required. Specifies the string to search
search Required. Specifies the string to search for. If this parameter is a number, it will search for the character matching the ASCII value of the number


--------------------------------------------------------------------------------

Tips and Notes
Note: This function is binary safe.

Note: This function is case-sensitive. For a case-insensitive search, use stristr().


--------------------------------------------------------------------------------

Example 1
echo strstr("Hello world!","world");
?>  

The output of the code above will be:

world!  


--------------------------------------------------------------------------------

Example 2
In this example we will search a string for the ASCII value of "o":

echo strstr("Hello world!",111);
?>  

The output of the code above will be:

o world!