<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Predefined Constants</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="errorfunc.resources.html">Resource Types</a></div> <div class="next" style="text-align: right; float: right;"><a href="errorfunc.examples.html">Examples</a></div> <div class="up"><a href="book.errorfunc.html">Error Handling</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="errorfunc.constants" class="appendix"> <h1>Predefined Constants</h1> <p class="simpara"> The constants below are always available as part of the PHP core. </p> <blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara"> You may use these constant names in <var class="filename">php.ini</var> but not outside of PHP, like in <var class="filename">httpd.conf</var>, where you'd use the bitmask values instead. </span> </p></blockquote> <table id="errorfunc.constants.errorlevels" class="doctable table"> <caption><strong>Errors and Logging</strong></caption> <thead> <tr> <th>Value</th> <th>Constant</th> <th>Description</th> <th>Note</th> </tr> </thead> <tbody class="tbody"> <tr id="errorfunc.constants.errorlevels.e-error"> <td>1</td> <td> <strong><code>E_ERROR</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> Fatal run-time errors. These indicate errors that can not be recovered from, such as a memory allocation problem. Execution of the script is halted. </td> <td class="empty"> </td> </tr> <tr id="errorfunc.constants.errorlevels.e-warning"> <td>2</td> <td> <strong><code>E_WARNING</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> Run-time warnings (non-fatal errors). Execution of the script is not halted. </td> <td class="empty"> </td> </tr> <tr id="errorfunc.constants.errorlevels.e-parse"> <td>4</td> <td> <strong><code>E_PARSE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> Compile-time parse errors. Parse errors should only be generated by the parser. </td> <td class="empty"> </td> </tr> <tr id="errorfunc.constants.errorlevels.e-notice"> <td>8</td> <td> <strong><code>E_NOTICE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> Run-time notices. Indicate that the script encountered something that could indicate an error, but could also happen in the normal course of running a script. </td> <td class="empty"> </td> </tr> <tr id="errorfunc.constants.errorlevels.e-core-error"> <td>16</td> <td> <strong><code>E_CORE_ERROR</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> Fatal errors that occur during PHP's initial startup. This is like an <strong><code>E_ERROR</code></strong>, except it is generated by the core of PHP. </td> <td class="empty"> </td> </tr> <tr id="errorfunc.constants.errorlevels.e-core-warning"> <td>32</td> <td> <strong><code>E_CORE_WARNING</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> Warnings (non-fatal errors) that occur during PHP's initial startup. This is like an <strong><code>E_WARNING</code></strong>, except it is generated by the core of PHP. </td> <td class="empty"> </td> </tr> <tr id="errorfunc.constants.errorlevels.e-compile-error"> <td>64</td> <td> <strong><code>E_COMPILE_ERROR</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> Fatal compile-time errors. This is like an <strong><code>E_ERROR</code></strong>, except it is generated by the Zend Scripting Engine. </td> <td class="empty"> </td> </tr> <tr id="errorfunc.constants.errorlevels.e-compile-warning"> <td>128</td> <td> <strong><code>E_COMPILE_WARNING</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> Compile-time warnings (non-fatal errors). This is like an <strong><code>E_WARNING</code></strong>, except it is generated by the Zend Scripting Engine. </td> <td class="empty"> </td> </tr> <tr id="errorfunc.constants.errorlevels.e-user-error"> <td>256</td> <td> <strong><code>E_USER_ERROR</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> User-generated error message. This is like an <strong><code>E_ERROR</code></strong>, except it is generated in PHP code by using the PHP function <span class="function"><a href="function.trigger-error.html" class="function">trigger_error()</a></span>. </td> <td class="empty"> </td> </tr> <tr id="errorfunc.constants.errorlevels.e-user-warning"> <td>512</td> <td> <strong><code>E_USER_WARNING</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> User-generated warning message. This is like an <strong><code>E_WARNING</code></strong>, except it is generated in PHP code by using the PHP function <span class="function"><a href="function.trigger-error.html" class="function">trigger_error()</a></span>. </td> <td class="empty"> </td> </tr> <tr id="errorfunc.constants.errorlevels.e-user-notice"> <td>1024</td> <td> <strong><code>E_USER_NOTICE</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> User-generated notice message. This is like an <strong><code>E_NOTICE</code></strong>, except it is generated in PHP code by using the PHP function <span class="function"><a href="function.trigger-error.html" class="function">trigger_error()</a></span>. </td> <td class="empty"> </td> </tr> <tr id="errorfunc.constants.errorlevels.e-strict"> <td>2048</td> <td> <strong><code>E_STRICT</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> Enable to have PHP suggest changes to your code which will ensure the best interoperability and forward compatibility of your code. </td> <td>Since PHP 5 but not included in <strong><code>E_ALL</code></strong> until PHP 5.4.0</td> </tr> <tr id="errorfunc.constants.errorlevels.e-recoverable-error"> <td>4096</td> <td> <strong><code>E_RECOVERABLE_ERROR</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> Catchable fatal error. It indicates that a probably dangerous error occurred, but did not leave the Engine in an unstable state. If the error is not caught by a user defined handle (see also <span class="function"><a href="function.set-error-handler.html" class="function">set_error_handler()</a></span>), the application aborts as it was an <strong><code>E_ERROR</code></strong>. </td> <td>Since PHP 5.2.0</td> </tr> <tr id="errorfunc.constants.errorlevels.e-deprecated-error"> <td>8192</td> <td> <strong><code>E_DEPRECATED</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> Run-time notices. Enable this to receive warnings about code that will not work in future versions. </td> <td>Since PHP 5.3.0</td> </tr> <tr id="errorfunc.constants.errorlevels.e-user-deprecated"> <td>16384</td> <td> <strong><code>E_USER_DEPRECATED</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> User-generated warning message. This is like an <strong><code>E_DEPRECATED</code></strong>, except it is generated in PHP code by using the PHP function <span class="function"><a href="function.trigger-error.html" class="function">trigger_error()</a></span>. </td> <td>Since PHP 5.3.0</td> </tr> <tr id="errorfunc.constants.errorlevels.e-all"> <td>32767</td> <td> <strong><code>E_ALL</code></strong> (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>) </td> <td> All errors and warnings, as supported, except of level <strong><code>E_STRICT</code></strong> prior to PHP 5.4.0. </td> <td> 32767 in PHP 5.4.x, 30719 in PHP 5.3.x, 6143 in PHP 5.2.x, 2047 previously </td> </tr> </tbody> </table> <p class="para"> The above values (either numerical or symbolic) are used to build up a bitmask that specifies which errors to report. You can use the <a href="language.operators.bitwise.html" class="link">bitwise operators</a> to combine these values or mask out certain types of errors. Note that only '|', '~', '!', '^' and '&' will be understood within <var class="filename">php.ini</var>. </p> </div> <hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="errorfunc.resources.html">Resource Types</a></div> <div class="next" style="text-align: right; float: right;"><a href="errorfunc.examples.html">Examples</a></div> <div class="up"><a href="book.errorfunc.html">Error Handling</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>