Optimize your PHP to Improve Performance
1. Use echo rather than print
2. Reduce variable declaration
3. Don't copy variables for no reason
2. Reduce variable declaration
3. Don't copy variables for no reason
4. register_globals should be disabled
5. Make sure all inputs are escaped
6. Avoid doing SQL queries within a loop
7. use regular expressions only where it is mandatory
6. Avoid doing SQL queries within a loop
7. use regular expressions only where it is mandatory
8. Avoid using PHP function inside for()
9. Error Handling
10. Increase the memory size //@ini_set("memory_limit","16M");
11. Use MVC Architecture
12. Use Template System (smarty)
13. Use Caching [ob_start(), ob_get_clean()]
14. Use Output buffering
9. Error Handling
10. Increase the memory size //@ini_set("memory_limit","16M");
11. Use MVC Architecture
12. Use Template System (smarty)
13. Use Caching [ob_start(), ob_get_clean()]
14. Use Output buffering
15. HTML optimize using ob_gzhander
16. Enable compression in php ini
zlib.output_compression = On
zlib.output_compression_level = (level) (where level is 1-9)
16. Enable compression in php ini
zlib.output_compression = On
zlib.output_compression_level = (level) (where level is 1-9)
Session Optimizations
• Don't use session.auto_start.
• Do not enable session.use_trans_sid
• Whenever possible set session.cache_limiter to private_no_expire
• Assign each user (vhost) its own session’s directory.
• For large sites consider using session.save_path = "N;/path"
• If possible avoid automatic garbage collection.
Query Optimization:
Don’t use “SELECT *”
Better to use Joins rather than sub-queries
Unoptimized joins can be VERY slow
Use LIMIT
use index meaningful
confirm you escaped the string correctly
Unoptimized joins can be VERY slow
Use LIMIT
use index meaningful
confirm you escaped the string correctly
Use EXPLAIN to find query fast
Avoid queries in loop