PHP - Microtime

Question

How php microtime generated, why only 13 - 15 numbers returned and if i write time manually like this:

<?php
$time = date('SAMPLE').date('SAMPLE').date('SAMPLE').date('SAMPLE').date('SAMPLE');
$TIME = microtime(true);
?>

and microtime look too short for contains all of date (Year,Month,Date,Hour,Minute,second) Is microtime really unique ?

Please give your opinion ...

Thanks

You need to explain yourself better. What are you trying to achieve, and what exactly is the problem you're having? — Bojangles, Mar 20 '13 at 16:04

score 3 · Accepted Answer · answered Mar 20 '13 at 09:08

3

microtime() returns the current Unix timestamp with microseconds. This function is only available on operating systems that support the gettimeofday() system call.

If you want to convert the timestamp into a human-readable date look at the date() function.

answered Mar 20 '13 at 09:08

Gung Foo

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but is microtime unique ? – Michael Antonius Mar 20 '13 at 09:24
2

for each microsecond your computer experiences, it is. – Gung Foo Mar 20 '13 at 09:30
1

@MichaelAntonius `uniqid()` is unique – Marko D Mar 20 '13 at 09:36

PHP - Microtime

1 Answers1