(PHP 4, PHP 5, PHP 7)
Find the first occurrence of a string
string strstr ( string $haystack, mixed $needle [, bool $before_needle = false ] )
Returns part of haystack string starting from and including the first occurrence of needle to the end of haystack.
Note:
This function is case-sensitive. For case-insensitive searches, use stristr().
Note:
If you only want to determine if a particular needle occurs within ha