Connecting to MySQL 5 from PHP on Mac OSX Leopard

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What is the difference between "localhost" and "127.0.0.1"? Everything, it seems, when you're trying to connect MySQL (and I have version 5.0.37 Community at the moment) running on Mac OSX - the latest Leopard release - with their PHP release including the MySQL drivers. It's PHP release 5.2.4.

In a nutshell:
mysql_connect("localhost","wellho","nottherealpassword");
FAILS with an error message:
Warning: mysql_connect() [function.mysql-connect]: Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (2) in /Library/WebServer/live_html/test/test.php on line 2

but:
mysql_connect("127.0.0.1","wellho","nottherealpassword");
works just fine.

Another gem ... to add to the loss of classic mode (serious issue for us FrameMaker users!) and the movement of configuration files. I have to admit this hasn't been the easiest of upgrades, and I wait to see whether I have more issues to find.

If you want to learn all about Apache httpd installation / configuration - and the PHP and MySQL elements too - see our LAMP deployment course. I'm the tutor and the "L" for Linux is close enough to the "M" for Mac OSX for it to be pretty damned close and very effective training. And I can and will show you how it works on my Mac too ;-)
(written 2007-12-03)

Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles

A602 - Web Application Deployment - Apache httpd - Sourcing, Installation, Testing
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  [2096] Where is my new Apache httpd installed - (2009-03-22)
  [2080] Using ApacheBench and jconsole to test and monitor Tomcat - (2009-03-14)
  [1945] Summary - Apache httpd build on Linux - (2008-12-14)
  [1768] What is built in to this httpd and PHP? - (2008-08-23)
  [1731] Apache httpd, MySQL, PHP - installation procedure - (2008-08-01)
  [1707] Configuring Apache httpd - (2008-07-12)
  [1449] Upgrade Mac OSX to Leopard, Web Server Apache httpd config lost - (2007-11-29)
  [1292] DHCP automatic IP address v Static IP - (2007-08-06)
  [1095] Apache httpd , browser, MySQL and MySQL client downloads - (2007-02-28)
  [982] Notes from the white board - (2006-12-14)
  [907] Browser -> httpd -> Tomcat -> MySQL. Restarting. - (2006-10-28)
  [660] Stopping and restarting Apache httpd cleanly - (2006-03-29)
  [550] 2006 - Making business a pleasure - (2006-01-01)
  [526] Apache httpd - serving web documents from different directories - (2005-12-12)
  [523] Apache httpd release 2.2 - (2005-12-10)

S159 - MySQL 5 and PHP 5
  [3455] MySQL, MySQLi, PDO or something else - how best to talk to databases from PHP - (2011-09-24)
  [2172] PHP4 v PHP5 - Object Model Difference - (2009-05-11)
  [1766] Diagrams to show you how - Tomcat, Java, PHP - (2008-08-22)
  [1754] Upgrade from PHP 4 to PHP 5 - the TRY issue - (2008-08-15)
  [1417] What software version do we teach? - (2007-10-31)
  [1131] MySQL - Password security (authentication protocol) - (2007-04-02)
  [515] MySQL - an FAQ - (2005-12-03)
  [494] MySQL - a score of things to remember - (2005-11-12)
  [104] mysql_connect or mysql_pconnect in PHP? - (2004-10-30)

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The wrong way to put up prices
A day in Ljubljana
Right up to the top of the City
Connecting to MySQL 5 from PHP on Mac OSX Leopard
From Sunday to Monday, from Melksham to the Balkans
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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