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[PHP] 瀏覽人數計算

雖然有用Google Analytics，但及時資料的API還在Beta中，所以還是索性寫了一個簡易的計算瀏覽人數的程式。

簡單來說就是計數器而已。

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<?php
	$totalfile = fopen("total.txt", "r");
	$total = fgets($totalfile);
	$total ++ ;
	fclose($totalfile);
	$totalfile = fopen("total.txt", "w");
	fwrite($totalfile,$total) ;
	fclose($totalfile);
	$date = date("Y-m-d",filemtime("today.txt")) ;
	$todayfile = fopen("today.txt", "r");
	if ( $date !== date ("Y-m-d")){
		$today = 0 ;
	} else {
		$today = fgets($todayfile);
	}
	$today ++ ;
	fclose($todayfile);
	$todayfile = fopen("today.txt", "w");
	fwrite($todayfile,$today) ;
	fclose($todayfile);
	
	echo $total ;
	echo $today ;
?>