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Xdebug and Eclipse

xdebug is an immensely powerful tool for exploring what your code really does.

You can get a long way using print_r  but ultimately this always requires that you predict the path your code will take - and the tricky bit about debugging is you need it when your predications have gone wrong.

It’s generally pretty easy to set up

  • install the php5-xdebug package
  • check that the Eclipse PHP preferences have xdebug as an option
  • if you’re debugging locally the default settings should be OK
  • create a site configuration in the debug dialog
  • set a break point
  • start debugging

If it doesn’t work at first restart Eclipse

Check that you have a browser configured in Eclipse

Not all settings seem to be picked up immediately