03c07-1.php

来自「介绍PHP5的给类型函数应用」· PHP 代码 · 共 92 行

<?php
ob_start();
require '03c02-1.php';
ob_end_clean();

// This function will print an HTML Calendar, given a month and year
function print_calendar($month, $year, $weekdaytostart = 0) {
	// There things we need to know about this month such as the last day:
	$last = idate('d', last_day($month, $year));
	
	// We also need to know what day of the week the first day is, and lets
	//  let the system tell us what the name of the Month is:
	$firstdaystamp = mktime(0, 0, 0, $month, 1, $year);
	$firstwday = idate('w', $firstdaystamp);
	$name = date('F', $firstdaystamp);
	
	// To easily enable our 'any day of the week start', we need to make an
	//  array of weekday numbers, in the actual printing order we are using
	$weekorder = array();
	for ($wo = $weekdaytostart; $wo < $weekdaytostart + 7; $wo++) {
		$weekorder[] = $wo % 7;
	}
	
	// Now, begin our HTML table
	echo "<table><tr><th colspan=\"7\">{$name} {$year}</th></tr>\n";

	// Now before we really start, print a day row:
	// Use the system to tell us the days of the week:
	echo '<tr>';
	// Loop over a full week, based upon day 1
	foreach ($weekorder as $w) {
		$dayname = date('D', 
			mktime(0, 0, 0, $month, 1 - $firstwday + $w, $year));
		echo "<th>{$dayname}</th>";
	}
	echo "</tr>\n";
	
	// Now we need to start some counters, and do some looping:
	$onday = 0;
	$started = false;
	
	// While we haven't surpassed the last day of the month, loop:
	while ($onday <= $last) {
		// Begin our next row of the table
		echo '<tr>';

		// Now loop 0 through 6, for the days of the week, but in the order
		//  we are actually going, use mod to make this work
		foreach ($weekorder as $d) {
			// If we haven't started yet:
			if (!($started)) {
				// Does today equal the first weekday we should start on?
				if ($d == $firstwday) {
					// Set that we have started, and increment the counter
					$started = true;
					$onday++;
				}
			}
			
			// Now if the day is zero or greater than the last day make a
			//  blank table cell.
			if (($onday == 0) || ($onday > $last)) {
				echo '<td>&nbsp;</td>';
			} else {
				// Otherwise, echo out a day & Increment the counter
				echo "<td>{$onday}</td>";
				$onday++;
			}
		}
		
		// End this table row:
		echo "</tr>\n";
	}
	
	// Now end the table:
	echo '</table>';
}

// Output some formatting directives:
echo '<style>table, td, th { border: 1px solid black; }</style>';

// Now make a couple sample tables:
// November 2005, with the default (Sunday) as the first day:
print_calendar(11, 2005);
echo '<br />';

// Create an entire year calendar for 2006 with Monday as the first day:
foreach(range(1, 12) as $m) {
	print_calendar($m, 2006, 1);
	echo '<br />';
}
?>