A case of PHP time format check function

Source: Internet
Author: User
This article describes a PHP implementation of the time format check of a function to check whether a given time is well-formed. Please refer to the friends who are in need.

The following code can be used to verify whether the time that the user entered is compliant. Example:

      ";    $str = "2012-02-30 12:31:22";    echo $str. "-";    echo isdatetime ($STR)? "TRUE": "FALSE";    echo "\ n";    $str = "2012-02-10 12:31:22";    echo $str. "-";    echo isdatetime ($STR)? "TRUE": "FALSE";    echo "\ n";    $str = "2012-02-10";    echo $str. "-";    Echo Isdatetime ($str, "YMD")? "TRUE": "FALSE";    echo "\ n";    $str = "2012-02-10";    echo $str. "-";    Echo Isdatetime ($str, "y-m-d")? "TRUE": "FALSE";? >

Output Result:

2012-02-30 12:31:22-false 2012-02-10 12:31:22-true 2012-02-10-false 2012-02-10-true

Code Description: Convert the incoming time into a timestamp with strtotime, then use the DATE function to convert to the specified format, if the converted string is the same as the one passed in, the format is correct.

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