The method for PHP to obtain the modification time of file content is: it can be achieved through the filemtime() function. The filemtime() function will return the last modification time of the file contents in the form of a Unix timestamp. Function syntax: [filemtime(filename)].
#To obtain the file content modification time, you can use the filemtime() function.
(Recommended tutorial: php tutorial)
Function introduction:
filemtime() function returns the last modification time of the file content.
If successful, this function will return the last modification time of the file contents in the form of a Unix timestamp. On failure, returns FALSE.
Syntax structure:
filemtime(filename)
Parameter introduction:
filename Required. Specifies the documents to be checked.
Code implementation:
<?php echo filemtime("test.txt"); echo "<br />"; echo "Last modified: ".date("F d Y H:i:s.",filemtime("test.txt")); ?>
Output result:
1139919766 Last modified: February 14 2006 13:22:46.
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