PHP Judge Unix timestamp size doubtful

PHP Judging unix timestamp size problem
A piece of content added function to do is to determine whether the final number of this content is greater than the system's current UNIX timestamp

For example

Title (the title content is not fixed) 1324570103

This content is the Unix timestamp in the extraction and the current system of Unix timestamp comparison, the size, larger than the timestamp is returned, otherwise do not display

I know it's return "$str" and "return".

But the middle of the judge also asked the expert to help analyze


------Solution--------------------

PHP Code

function GetContent ($source) {   if (empty ($source)) return "";   $str = "This is the value I want to return";   Preg_match ('/(\d+) <\/span>/isu ', $source, $matches);   if ($matches [1]>time ()) {      return $str;   } else{      return "";   }} Use Method Date_default_timezone_set ("Asia/shanghai"), $content = '1324570103'; $res = GetContent ($content);
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