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Next chapter: Cache array data >>

Previous chapter: Listen to all errors, big and small

Jump to: Performance   Optimising your code      Write your code sensibly      Use your tools wisely      Use some functions carefully for maximum performance      Use the Zend Optimizer for older PHP versions      Use a PHP code cache for newer PHP versions      Read the manual carefully      Get your loops right first      Pre-increment and post-increment aren't the same      Don't think that using references will lower your RAM usage      Be wary of garbage collection, part 1      Be wary of garbage collection, part 2      Listen to all errors, big and small      Keep up to date      Cache array data      Compress your output      Don't use CGI      Don't use dl()      Debug your code      Cache your data with memcache      Use persistent connections      Take advantage of new features      Compile right      Ignore the myths      Avoid mod_access if you can      Make sure you optimize Apache   Optimising your SQL      Prioritise your data      Optimise your tables      Select as little data as possible      Use shorter queries where possible      Use the EXPLAIN statement      Change your hardware      Choose your data types carefully      Size vs. Speed      Declare fields NOT NULL      Load data intelligently      Consider splitting off variable-length fields      Be wary of locks      Consider switching OS      Spot slow queries      Perform joins carefully      Index your data      Make sure your indexes are being used      Normalisation      Upgrade MySQL      Increase your buffers      Keep tabs on your server      Lock your tables when appropriate      Don't rely on automatic type conversion      Benchmark, benchmark, benchmark!      Know MySQL's strengths   Server   PHP Accelerators   Caching PHP   PHP as a CGI or a module?   Size of scripts   Summary   Exercises   Further reading   Next chapter

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