Php loading time problems

Load a. php and B. php on a page, use 10 ms for a. php, and use 1 s for B. php. Exchange the AB code, and the time is almost unchanged. Create c. php and copy the B. php code. Use c. php instead. Use c for almost 10 ms... What is the possible cause... Add, time is spent in waiting...

Load a. php and B. php on a page, use 10 ms for a. php, and use 1 s for B. php. Exchange the AB code, and the time is almost unchanged. Create c. php and copy the B. php code. Use c. php instead. Use c for almost 10 ms...
What is the possible cause...
Add, time is spent in waiting...

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Load a. php and B. php on a page, use 10 ms for a. php, and use 1 s for B. php. Exchange the AB code, and the time is almost unchanged. Create c. php and copy the B. php code. Use c. php instead. Use c for almost 10 ms...
What is the possible cause...
Add, time is spent in waiting...

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