Php Catch Catchable Fatal Error
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Php Catchable Fatal Error Argument 1 Passed To
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E_recoverable_error
Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How can I catch a “catchable fatal error” on PHP
Catchable Fatal Error: Object Of Class Mysqli_result Could Not Be Converted To String
type hinting? up vote 74 down vote favorite 27 I am trying to implement Type Hinting of PHP5 on one of my class, class ClassA { public function method_a (ClassB $b) {} } class ClassB {} class ClassWrong{} Correct usage: $a = new ClassA; $a->method_a(new ClassB); producing error: $a = new ClassA; $a->method_a(new ClassWrong); Catchable fatal error: Argument 1 passed to ClassA::method_a() must be an instance of ClassB, php e_error instance of ClassWrong given... May I know if it is possible to catch that error(since it says "catchable")? and if yes, how? Thank you. php fatal-error type-hinting share|improve this question asked Mar 18 '10 at 8:59 hoball 1,06121315 2 For future reference: Exceptions in the engine (for PHP 7) - Beginning with PHP 7 it is possible catch fatal errors. This is also for the here discussed “Catchable fatal error” (E_RECOVERABLE_ERROR) as these be catched beginning with PHP 7.. –hakre Apr 27 '15 at 6:11 add a comment| 1 Answer 1 active oldest votes up vote 84 down vote accepted Update: This is not a catchable fatal error anymore in php 7. Instead an "exception" is thrown. An "exception" (in scare quotes) that is not derived from Exception but Error; it's still a Throwable and can be handled with a normal try-catch block. see https://wiki.php.net/rfc/throwable-interface E.g. method_a(new $cn); } catch(Error $err) { echo "catched: ", $err->getMessage(), PHP_EOL; } } echo 'd
to Program in Python Python Programming Special Python subjects / courses Tcl • Learning to Program in Tcl Tcl Programming Special Tcl, Expect, Tk subjects / error handler php courses Ruby • Learning to Program in Ruby Ruby Programming Special Ruby, php catch fatal error Rails subjects / courses Lua • Learning to Program in Lua Lua Programming Special Lua subjects / courses C php catch error & C++ • Learning to Program in C and C++ C and C++ Programming Other C and C++ subjects / courses Tomcat Deploying Apache / Tomcat Other Tomcat and Linux http://stackoverflow.com/questions/2468487/how-can-i-catch-a-catchable-fatal-error-on-php-type-hinting subjects Search for: Print friendly page Home Accessibility Courses Twitter The Mouth Facebook Resources Site Map About Us Contact • This site uses cookies - see [here] for details.• If you proceed, we will take that as your consent to accept cookies Catchable fatal error in PHP ... How to catch, and alternative solutions such as JSON When you ask your program http://www.wellho.net/mouth/3210_catchable-fatal-error-in-php-how-to-catch-and-alternative-solutions-such-as-json.html to "print out an object", you're really looking to convert a data structure into a stream of characters, and it's not really obvious what you're looking to do. If you try to print out an object in PHP: print ($result . "\n"); where the $result variable contains an instance of an object, you'll get a message like: Catchable fatal error: Object of class station could not be converted
to string in /Users/grahamellis/oop/oop5.php on line 108 How do you avoid your program failing like this? There are a number of options. 1. You can run a method on your object that will convert it to a string: print ($result->describe() . "\n"); 2. You can serialize your object using the built in PHP serialise function. This will convert the object to s atring in predetermined format, so that you can unserialize it later ... and you'll get a string which you can save to file, print out, transmit to another computer, etc. 3. You can (from PHP 5.2) serialise the object with json_encode. "JSON (JavaScript Object Notation) is a lightweight data-interchange format
and Objects Namespaces Errors Exceptions Generators References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module http://php.net/manual/en/language.exceptions.php Session Security Filesystem Security Database Security Error Reporting Using Register Globals User Submitted https://forum.phalconphp.com/discussion/3715/catching-fatal-errors-on-type-hinted-controller-methods Data Magic Quotes Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Safe Mode Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions fatal error Compression and Archive Extensions Credit Card Processing Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions catchable fatal error XML Manipulation Keyboard Shortcuts? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search(current page) / Focus search box Extending Exceptions » « Errors in PHP 7 PHP Manual Language Reference Change language: English Brazilian Portuguese Chinese (Simplified) French German Japanese Korean Romanian Russian Spanish Turkish Other Edit Report a Bug Exceptions Table of ContentsExtending Exceptions PHP 5 has an exception model similar to that of other programming languages. An exception can be thrown, and caught ("catched") within PHP. Code may be surrounded in a try block, to facilitate the catching of potential exceptions. Each try must have at least one corresponding catch or finally block. The thrown object must be an instance of the Exception class or a subclass of Exception. Trying to throw an object that is not will result in a PHP Fatal Error. catch Multiple catch blocks can be used to catch different classes of exceptions. Normal execution (when no exception is thrown within the try block) will continue after that last catch block def
following router converter defined: $router->addGet(...) ->convert('southWest', function($southWest) { $sw = explode(',', $southWest); try{ $p = new Point($sw[0], $sw[1]); } catch(Exception $e) { //Impossible to create instance of Point and senseless to use default values $p = NULL } return $p; }); The parameter (Point) will be passed to the following controller method: public function fooAction(Point $southWest) { ...mycode } In case of an Exception inside the converter, $p = NULL will be returned and then passed to fooAction. Unfortunately then a Catchable fatal error will be thrown by PHP. Now my questions: Is it possible to redirect to another action before fooAction will be called with a invalid parameter ? Is it possible to catch the fatal error and call another action? If yes, where should that be done? Phalcon 78.8k Oct '14 I think those fatal E_RECOVERABLE_ERROR errors cannot be catched by a try/catch: try { class X { public function b(X $x) { } } $a = null; $x = new X; $x->b($a); } catch (\Exception $e) { // this is never executed } PHP Catchable fatal error: Argument 1 passed to X::b() must be an instance of X, null given, called in /Users/scott/cphalcon/a.php on line 13 and defined in /Users/scott/cphalcon/a.php on line 6 You can create an error handler to handle these kind of errors: set_error_handler(function($errno, $errstr, $errfile, $errline) { if (E_RECOVERABLE_ERROR === $errno) { echo "'catched' catchable fatal error\n"; return true; } return false; }) dompie 4.1k Oct '14 Yes, indeed. They can not be catched. I was hoping there is a build in way in phalcon that makes it possible to elegantly call/redirect to another action in that case. I'll then take another way and send an invalid request response right from the catch block before die()ing. Thanks sventunus 1.5k edited Oct '14 Oct '14 How about: $sw = explode(',', $southWest) try { $p = new Point($sw[0], $sw[1]); if(!get_class(p) === Point) { // call other action here } } catch(Exception $e) { //Impossible to create instance of Point and senseless to use default values $p = NULL } return $p; ? dompie 4.1k edited Oct '14 Oct '14 My point class will throw an exception when coordinates are invalid (e.g. 837.23472,-414.128371). I can't do that. Log In to Comment × History Loading... Close × Error Close Powered by Phalcon 3.0.1