Showing all errors and warnings [duplicate]

Answer 1

You can see a detailed description here.

ini_set('display_errors', 1);

// Report simple running errors
error_reporting(E_ERROR | E_WARNING | E_PARSE);

// Reporting E_NOTICE can be good too (to report uninitialized
// variables or catch variable name misspellings ...)
error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);

// Report all errors except E_NOTICE
error_reporting(E_ALL & ~E_NOTICE);

// Report all PHP errors (see changelog)
error_reporting(E_ALL);

// Report all PHP errors
error_reporting(-1);

// Same as error_reporting(E_ALL);
ini_set('error_reporting', E_ALL);

Changelog

• 5.4.0 E_STRICT became part of E_ALL

• 5.3.0 E_DEPRECATED and E_USER_DEPRECATED introduced.

• 5.2.0 E_RECOVERABLE_ERROR introduced.

• 5.0.0 E_STRICT introduced (not part of E_ALL).