Or Mysql Error Php
Contents |
and Objects Namespaces Errors Exceptions Generators References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Context options and parameters php mysqli error Supported Protocols and Wrappers Security Introduction General considerations Installed as php mysql error handling CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting
Or Die Mysql Error
Using Register Globals User Submitted Data Magic Quotes Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads
Mysqli_query Error
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 Compression and Archive Extensions Credit Card Processing Cryptography Extensions Database Extensions Date and Time Related Extensions File mysql_query error 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 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 mysql_escape_string » « mysql_errno PHP Manual Function Reference Database Extensions Vendor Specific Database Extensions MySQL MySQL (Original) MySQL Functions Change language: English Brazilian Portuguese Chinese (Simplified) French German Japanese Korean Romanian Russian Spanish Turkish Other Edit Report a Bug mysql_error (PHP 4, PHP 5)mysql_error — Returns the text of the error mess
Learn Bootstrap Learn Graphics Learn Icons Learn How To JavaScript Learn JavaScript Learn jQuery Learn jQueryMobile Learn AppML Learn AngularJS Learn JSON Learn AJAX
Die(mysql_error())
Server Side Learn SQL Learn PHP Learn ASP Web Building Web Templates i cannot select mysql database Web Statistics Web Certificates XML Learn XML Learn XML AJAX Learn XML DOM Learn XML DTD Learn XML mysql get last error Schema Learn XSLT Learn XPath Learn XQuery × HTML HTML Tag Reference HTML Event Reference HTML Color Reference HTML Attribute Reference HTML Canvas Reference HTML SVG Reference Google Maps http://php.net/manual/en/function.mysql-error.php Reference CSS CSS Reference CSS Selector Reference W3.CSS Reference Bootstrap Reference Icon Reference JavaScript JavaScript Reference HTML DOM Reference jQuery Reference jQuery Mobile Reference AngularJS Reference XML XML Reference XML Http Reference XSLT Reference XML Schema Reference Charsets HTML Character Sets HTML ASCII HTML ANSI HTML Windows-1252 HTML ISO-8859-1 HTML Symbols HTML UTF-8 Server Side PHP Reference SQL http://www.w3schools.com/php/func_mysqli_error.asp Reference ASP Reference × HTML/CSS HTML Examples CSS Examples W3.CSS Examples Bootstrap Examples JavaScript JavaScript Examples HTML DOM Examples jQuery Examples jQuery Mobile Examples AngularJS Examples AJAX Examples XML XML Examples XSLT Examples XPath Examples XML Schema Examples SVG Examples Server Side PHP Examples ASP Examples Quizzes HTML Quiz CSS Quiz JavaScript Quiz Bootstrap Quiz jQuery Quiz PHP Quiz SQL Quiz XML Quiz × PHP Tutorial PHP HOME PHP Intro PHP Install PHP Syntax PHP Variables PHP Echo / Print PHP Data Types PHP Strings PHP Constants PHP Operators PHP If...Else...Elseif PHP Switch PHP While Loops PHP For Loops PHP Functions PHP Arrays PHP Sorting Arrays PHP Superglobals PHP Forms PHP Form Handling PHP Form Validation PHP Form Required PHP Form URL/E-mail PHP Form Complete PHP Advanced PHP Arrays Multi PHP Date and Time PHP Include PHP File Handling PHP File Open/Read PHP File Create/Write PHP File Upload PHP Cookies PHP Sessions PHP Filters PHP Filters Advanced PHP Error Handling PHP Exception MySQL Database MySQL Database MySQL Connect MySQL Create DB MySQL Create Ta
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about http://stackoverflow.com/questions/12227626/how-to-display-mysql-error-in-php Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is http://jason.pureconcepts.net/2013/04/common-debugging-php-mysql/ a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up how to display MySql error in php up vote 14 down vote favorite In mysql error PHP, I am trying to execute a long MySql query that depends on the user input. However, my query fails with the following message, "Query Failed". Actually I have printed this message whenever the query fails but I am having hard time looking for the reason behind this failure. Unfortunately, I couldn't find it because the error is not specified on the web page. My question is, is there any or mysql error way to display the error message that caused the failure on the web page. Thank you. Here's my code, $from= "Findings"; $where=""; if($service!= null) { $from = $from . ", ServiceType_Lookup"; $where= "Findings.ServiceType_ID= ServiceType_Lookup.ServiceType_ID AND ServiceType_Name= ". $service; if($keyword!= null) $where= $where . " AND "; } if( $keyword != null) { $where= $where . "Finding_ID LIKE '%$keyword%' OR ServiceType_ID LIKE '%$keyword%' OR Title LIKE '%$keyword%' OR RootCause_ID LIKE '%$keyword%' OR RiskRating_ID LIKE '%$keyword%' OR Impact_ID LIKE '%$keyword%' OR Efforts_ID LIKE '%$keyword%' OR Likelihood_ID LIKE '%$keyword%' OR Finding LIKE '%$keyword%' OR Implication LIKE '%$keyword%' OR Recommendation LIKE '%$keyword%' OR Report_ID LIKE '%$keyword%'"; } $query = "SELECT Finding_ID, ServiceType_ID, Title, RootCause_ID, RiskRating_ID, Impact_ID, Efforts_ID, Likelihood_ID, Finding, Implication, Recommendation, Report_ID FROM ".$from . " WHERE " . $where; echo "wala 2eshiq"; $this->result = $this->db_link->query($query); if (!$this->result) { printf("Query failed: %s\n", mysqli_connect_error()); exit; } $r = mysqli_query($this->db_link, $query); if($r==false) printf("error: %s\n", mysqli_errno($this->db_link)); php mysql share|improve this question asked Sep 1 '12 at 12:16 Traveling Salesman 56131640 You can just use: $this->db_link->error to get the last error message. For all errors use $this->db_link->error_list. –hakre Sep 1 '12 at 12:31 add a comment| 7 Answers 7 active oldest votes up vote 17 down vote accepted Use this: mysqli_query($this->db_link, $query) or die(mysql
I see many questions on StackOverflow about database issues. This post aims to provide a checklist to help diagnose common issues. While this post contains PHP and MySQL code samples, this debugging checklist applies to other database platforms. First, debugging is hard. Especially debugging database issues. Often times the best approach is to systematically rule out what cannot be the problem. This checklist adopts such an approach from a low to high level. Can you connect to the database outside your application? Verify you can connect to your database by logging into MySQL from the command line. mysql -u dbuser -p -h localhost database If you have a specific database user for your application, be sure to verify their credentials as well. If you do not have command line access, you can use another database administration tool (e.g. PHPMyAdmin). If you cannot connect to the database, you need to start at the beginning: Ensure MySQL is running, your database exists, and your credentials are correct. Can you connect to the database inside your application? Verify you can connect to the database from PHP. Test with a separate script to also rule out bugs in your codebase: query($sql)) { echo 'Error: ', $mysqli->error; } In this case, we’d see that $bad_var is not set. As such, the query becomes: SELECT column FROM table WHERE column = Note: This code above is a contrived example of a dynamic query. If you do not see what else is w