YouTipPHP microtime() Function
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PHP microtime() Function
The microtime() function returns the current Unix timestamp with microseconds.
If the optional parameter get_as_float is set to TRUE, it returns a floating point number representing the Unix timestamp (in seconds).
Syntax
microtime(get_as_float)Parameters
| Parameter | Description |
|---|---|
| get_as_float | Optional. If TRUE, the function returns a floating point number. If FALSE, it returns a string in the format "msec sec". |
Return Value
If get_as_float is TRUE, returns a float. Otherwise, returns a string like "0.123456 1234567890".
Example 1
<?php
echo microtime();
?>Output:
0.12345600 1234567890Example 2
<?php
echo microtime(true);
?>Output:
1234567890.1234Example 3
<?php
// Calculate script execution time
$start = microtime(true);
// Some code to execute
for ($i = 0; $i < 100000; $i++) {
// Do nothing
}
$end = microtime(true);
echo "Execution time: " . ($end - $start) . " seconds";
?>Output:
Execution time: 0.0032 seconds