error_reporting

(PHP 3, PHP 4 )

error_reporting -- set which PHP errors are reported

Description

int error_reporting ([int level])

Sets PHP's error reporting level and returns the old level. The error reporting level is either a bitmask, or named constant. Using named constants is strongly encouraged to ensure compatibility for future versions. As error levels are added, the range of integers increases, so older integer-based error levels will not always behave as expected.

Example 1. Error Integer changes


error_reporting (55);   // PHP 3 equivalent to E_ALL ^ E_NOTICE

/* ...in PHP 4, '55' would mean (E_ERROR | E_WARNING | E_PARSE |
E_CORE_ERROR | E_CORE_WARNING) */

error_reporting (2039); // PHP 4 equivalent to E_ALL ^ E_NOTICE

error_reporting (E_ALL ^ E_NOTICE); // The same in both PHP 3 and 4
      
Follow the links for the internal values to get their meanings:

Table 1. error_reporting() bit values

constantvalue
1 E_ERROR
2 E_WARNING
4 E_PARSE
8 E_NOTICE
16 E_CORE_ERROR
32 E_CORE_WARNING
64 E_COMPILE_ERROR
128 E_COMPILE_WARNING
256 E_USER_ERROR
512 E_USER_WARNING
1024 E_USER_NOTICE

Example 2. error_reporting() examples


error_reporting(0);
/* Turn off all reporting */

error_reporting (7); // Old syntax, PHP 2/3
error_reporting  (E_ERROR | E_WARNING | E_PARSE); // New syntax for PHP 3/4
/* Good to use for simple running errors  */

error_reporting  (15); // Old syntax, PHP 2/3
error_reporting (E_ERROR | E_WARNING | E_PARSE | E_NOTICE); // New syntax for PHP 3/4
/*  good for code authoring to report uninitialized or (possibly mis-spelled) variables */

error_reporting (63); // Old syntax, PHP 2/3
error_reporting (E_ALL); // New syntax for PHP 3/4
/* report all PHP errors */
      


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