Disable errors in PHP

How to disable errors just for particular php function, and in the same time to know that the error occurred? For instance开发者_JAVA技巧, I use a php function parse_url, to parse an array of urls, sometimes it returns an error, what I want to do is to parse next url once error occurs, and not to show it(error) on the screen.

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You might want to take a look at set_error_handler().

You can do anything you want registering your own handler.

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the @ symbol before a function will suppress the error message and parse_url() returns false on erroring so just catch that.

 if(@parse_url($url) === false) {
        //Error has been caught here
    }

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@ is evil.

You can use this:

try {
  // your code
} catch (Exception $e) {
  // a block that executed when the exception is raised
}

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Sounds like you are looking for a custom error handler

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

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the best way is to convert php "errors" to exceptions, using the technique outlined here http://php.net/manual/en/class.errorexception.php and then handle an Exception like you do in other languages:

 function exception_error_handler($errno, $errstr, $errfile, $errline ) {
    throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
 }
 set_error_handler("exception_error_handler");


try {
   parse_url(...)
} catch(Exception $e) {

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Prefixing your function call with an @, so using @parse_url() should hide the error

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To silent errors for a particular statement, simply add a @.

Example

$file = @file_get_contents($url);

When file_get_contents can throw error when $url is not found.

You can use the @ sign anywhere to silent any statements. Like:

$i = @(5/0);