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1. www.php.net › manual › enPHP: microtime - Manual

   www.php.net › manual › en

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

   • Mktime

     Returns the Unix timestamp corresponding to the arguments...

   • Localtime

     Parameters ¶ timestamp The optional timestamp parameter is...

   • Gmmktime

     Identical to mktime () except the passed parameters...

   • Date

     Parameters ¶ format Format accepted by...

2. www.w3schools.com › php › func_date_microtimePHP microtime () Function - W3Schools

   www.w3schools.com › php › func_date_microtime

   Definition and Usage The microtime () function returns the current Unix timestamp with microseconds.

3. www.geeksforgeeks.org › php › php-microtime-functionPHP | microtime() Function - GeeksforGeeks

   www.geeksforgeeks.org › php › php-microtime-function

   Jul 11, 2025 · The microtime () function is an inbuilt function in PHP which is used to return the current Unix timestamp with microseconds. The $get_as_float is sent as a parameter to the microtime () function and it returns the string microsec sec by default.

4. www.tutorialspoint.com › php › php_function_microtimePHP microtime () Function - Online Tutorials Library

   www.tutorialspoint.com › php › php_function_microtime

   The microtime() function returns the current Unix timestamp with microseconds. By default, this function returns a string value which contains microseconds and seconds separated by space (msec sec).

5. clouddevs.com › php › microtime-functionUnderstanding PHP’s microtime () Function: Timing Your Scripts

   clouddevs.com › php › microtime-function

   Learn how to use PHP's microtime () function to measure the execution time of your scripts and optimize their performance.

6. www.positioniseverything.net › php-microtimePHP microtime: How To Work With Different Time Units

   www.positioniseverything.net › php-microtime

   Dec 29, 2025 · The PHP microtime function is the one that returns the current Unix timestamp with microseconds. And interestingly, you can use the said function to get time in other units as well, such as seconds. So, here you’ll see how the PHP microtime works, how you can use the same for converting time units, and which other function returns time in seconds.

7. People also ask

   What is a PHP Microtime function?

   • The PHP microtime function is the one that returns the current Unix timestamp with microseconds. And interestingly, you can use the said function to get time in other units as well, such as seconds. So, here you’ll see how the PHP microtime works, how you can use the same for converting time units, and which other function returns time in seconds.

   PHP microtime: How To Work With Different Time Units

   www.positioniseverything.net/php-microtime/

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   What is a Microtime function in Unix?

   • The microtime () function creates current Unix timestamp with microseconds values. Version: (PHP 4 and above) Syntax: Parameter: When it set to true then a float (in seconds) is returned instead of a string. Return value: Unix timestamp Value Type: Mixed*. *Mixed : Mixed indicates multiple (but not necessarily all) types. Example: Output:

   PHP: microtime() function - w3resource

   www.w3resource.com/php/function-reference/microtime.php

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   How to return Unix timestamp with microseconds in PHP?

   • ❮ PHP Date/Time Reference Return the current Unix timestamp with microseconds: The microtime () function returns the current Unix timestamp with microseconds. microtime (return_float); Optional. When set to TRUE it specifies that the function should return a float, instead of a string.

   PHP microtime () Function - W3Schools

   www.w3schools.com/php/func_date_microtime.asp

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   What is a Microtime float in Unix?

   • If as_float is set to true, then microtime () returns a float, which represents the current time in seconds since the Unix epoch accurate to the nearest microsecond. Example #1 Timing script execution

   PHP: microtime - Manual

   www.php.net/manual/en/function.microtime.php

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8. www.w3resource.com › microtimePHP: microtime () function - w3resource

   www.w3resource.com › microtime

   Aug 19, 2022 · The microtime() function creates current Unix timestamp with microseconds values.