<!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>Errors in PHP 7</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="language.errors.basics.html">Basics</a></div> <div class="next" style="text-align: right; float: right;"><a href="language.exceptions.html">Exceptions</a></div> <div class="up"><a href="language.errors.html">Errors</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="language.errors.php7" class="sect1"> <h2 class="title">Errors in PHP 7</h2> <p class="para"> PHP 7 changes how most errors are reported by PHP. Instead of reporting errors through the traditional error reporting mechanism used by PHP 5, most errors are now reported by throwing <a href="class.error.html" class="classname">Error</a> exceptions. </p> <p class="para"> As with normal exceptions, these <a href="class.error.html" class="classname">Error</a> exceptions will bubble up until they reach the first matching <a href="language.exceptions.html#language.exceptions.catch" class="link"><em>catch</em></a> block. If there are no matching blocks, then any default exception handler installed with <span class="function"><a href="function.set-exception-handler.html" class="function">set_exception_handler()</a></span> will be called, and if there is no default exception handler, then the exception will be converted to a fatal error and will be handled like a traditional error. </p> <p class="para"> As the <a href="class.error.html" class="classname">Error</a> hierarchy does not inherit from <a href="class.exception.html" class="classname">Exception</a>, code that uses <code class="code">catch (Exception $e) { ... }</code> blocks to handle uncaught exceptions in PHP 5 will find that these <a href="class.error.html" class="classname">Error</a>s are not caught by these blocks. Either a <code class="code">catch (Error $e) { ... }</code> block or a <span class="function"><a href="function.set-exception-handler.html" class="function">set_exception_handler()</a></span> handler is required. </p> <div class="sect2" id="language.errors.php7.hierarchy"> <h3 class="title"><a href="class.error.html" class="classname">Error</a> hierarchy</h3> <ul class="itemizedlist"> <li class="listitem"> <span class="simpara"><a href="class.throwable.html" class="classname">Throwable</a></span> <ul class="itemizedlist"> <li class="listitem"> <span class="simpara"><a href="class.error.html" class="classname">Error</a></span> <ul class="itemizedlist"> <li class="listitem"> <span class="simpara"><a href="class.arithmeticerror.html" class="classname">ArithmeticError</a></span> <ul class="itemizedlist"> <li class="listitem"> <span class="simpara"><a href="class.divisionbyzeroerror.html" class="classname">DivisionByZeroError</a></span> </li> </ul> </li> <li class="listitem"> <span class="simpara"><a href="class.assertionerror.html" class="classname">AssertionError</a></span> </li> <li class="listitem"> <span class="simpara"><a href="class.compileerror.html" class="classname">CompileError</a></span> <ul class="itemizedlist"> <li class="listitem"> <span class="simpara"><a href="class.parseerror.html" class="classname">ParseError</a></span> </li> </ul> </li> <li class="listitem"> <span class="simpara"><a href="class.typeerror.html" class="classname">TypeError</a></span> <ul class="itemizedlist"> <li class="listitem"> <span class="simpara"><a href="class.argumentcounterror.html" class="classname">ArgumentCountError</a></span> </li> </ul> </li> </ul> </li> <li class="listitem"> <span class="simpara"><a href="class.exception.html" class="classname">Exception</a></span> <ul class="itemizedlist"> <li class="listitem"> <span class="simpara">...</span> </li> </ul> </li> </ul> </li> </ul> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="language.errors.basics.html">Basics</a></div> <div class="next" style="text-align: right; float: right;"><a href="language.exceptions.html">Exceptions</a></div> <div class="up"><a href="language.errors.html">Errors</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>