Questions:
Is there a quick(er) way to check if an array key exists that matches a pattern? My goal is to use the value of a key that starts with “song_“, regardless of how it ends.
currently I’m doing this:
foreach($result as $r){
// $r = array("title"=>'abc', "song_5" => 'abc')
$keys = array_keys($r);
foreach($keys as $key){
if (preg_match("/^song_/", $key) {
echo "FOUND {$r[$key]}";
}
}
}
Is there a way to to a preg_match across arrays, or is foreach through array_keys the most native way to do that?
How to&Answers:
How about using preg_grep:
$keys = ['song_the_first', 'title', 'song_5'];
$matched = preg_grep('/^song_/', $keys);
# print_r($matched)
#
# Array
# (
# [0] => song_the_first
# [2] => song_5
# )
