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CHAPTER 8 • ERROR AND EXCEPTION HANDLINGwww.it-ebooks.infoSetting the Desired Error Sensitivity LevelThe error_reporting directive determines the reporting sensitivity level. Sixteen separate levels areavailable, and any combination of these levels is valid. See Table 8-1 for a complete list of these levels.Note that each level is inclusive of all levels below it. For example, the E_ALL level reports any messagesfrom the 15 levels below it in the table.Table 8-1. PHP’s Error-Reporting LevelsError LevelE_ALLE_COMPILE_ERRORE_COMPILE_WARNINGE_CORE_ERRORE_CORE_WARNINGE_DEPRECATEDE_ERRORE_NOTICEE_PARSEDescriptionAll errors and warningsFatal compile-time errorsCompile-time warningsFatal errors that occur during PHP’s initial startWarnings that occur during PHP’s initial startWarnings regarding use of features scheduled for removal in a future PHPrelease (introduced in PHP 5.3)Fatal run-time errorsRun-time noticesCompile-time parse errorsE_RECOVERABLE_ERROR Near-fatal errors (introduced in PHP 5.2)E_STRICT PHP version portability suggestions (introduced in PHP 5.0)E_USER_DEPRECATEDE_USER_ERRORE_USER_NOTICEE_USER_WARNINGE_WARNINGWarnings regarding user-initiated use of features scheduled for removal infuture PHP release (introduced in PHP 5.3)User-generated errorsUser-generated noticesUser-generated warningsRun-time warningsIntroduced in PHP 5, E_STRICT suggests code changes based on the core developers’ determinationsas to proper coding methodologies and is intended to ensure portability across PHP versions. If you use176