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PHP Regex to get YouTube Video ID
The parse_url and parse_str functions can be used to get the ID of a specific YouTube video.
Example
<?php $url = " https://www.youtube.com/watch?v=VX96I7PO8YU "; parse_str( parse_url( $url, PHP_URL_QUERY ), $my_array ); echo $my_array['v']; ?>
Output
VX96I7PO8YU
In the above code, the parse_url function takes in a string and slices it into an array of information. The element that the user specifically wants to work with can be specified as a second argument or the entire array can be used.
A YouTube video has an ID that can be seen in the URL. The goal is to fetch the ID after the letter ‘v’ and before ‘&’. To accomplish this, the parse_str function can be used. It is similar to GET functionality, which takes a string and creates variables that are specified by the string.
For example − If v=5R60Tpz3Bow, it creates a variable named $v. This is stored as an array element, thereby giving control over the variable being stored, so as to not overwrite it accidentally.
Note − Regular expression, also known as regex can be used to tackle many problems, but are prone to errors. Hence, they need to be used with care.
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