输出自定义错误消息而不是默认的PHP错误消息

Question

I am using the PHP copy function in part of my program, where the parameters of the function depend on user input. I am trying to avoid the default php error message if they include a path that the function cannot use, and output a custom message like shown below. I am new to handling errors/ exceptions. I am still getting the php default error message instead of the custom 'Path was incorrect!' using the method below.

What I tried:

try{
    copy($webImagePath, $destinationPath);
 }
 catch(Exception $e){
    echo 'Path was incorrect!';
 }

Answer 1

Consider set_error_handler: http://php.net/manual/en/function.set-error-handler.php

Example:

set_error_handler("someFunction");

function someFunction($errno, $errstr) {
    output details and information
}