What is the best PHP function to manipulate a string to remove everything after a specific character?

To remove everything after a specific character in a string in PHP, you can use the `strstr()` function to find the position of the character and then use `substr()` to extract the substring before that character. This approach allows you to easily manipulate the string and remove everything after the specified character.

$string = "Hello, World!";
$character = ",";
$position = strpos($string, $character);
if($position !== false){
    $result = substr($string, 0, $position);
    echo $result; // Output: Hello
}