Laravel4创建一个占位图片服务例子

// vim app/routes.php
<?php
Route::pattern('width', '＼d+');
Route::pattern('height', '＼d+');
Route::get('{width}x{height}', 'ImageHolderController@getIndex');
// vim app/controllers/ImageHolderController.php
<?php

class ImageHolderController extends BaseController {
    public function getIndex($width, $height)
    {
        $width = intval($width);
        $height = intval($height);
        if ($width > 1900 || $height > 900)
            App::abort(404);
        $fontSize = min(max(intval($width / 5), 12), 38);
        $image = Image::canvas($width, $height, '#CCCCCC')
                ->line('#B5B5B5', 0, 0, $width, $height)
                ->line('#B5B5B5', $width, 0, 0, $height)
                ->text($width . 'x' . $height, $width / 2, $height / 2, function ($font) use ($fontSize) {
                    $font->file(public_path('font/Georgia.ttf'));
                    $font->align('center');
                    $font->valign('middle');
                    $font->size($fontSize);
                    $font->color('#666666');
                });
        return Response::make($image, 200, array('Content-Type' => 'image/png'));
    }
}

php -r “echo date(‘Y/m’,strtotime(‘-2 months’)) . ＼”＼n＼”;”

php -r “echo date(‘Y/m’,strtotime(‘-3 months’)) . ＼”＼n＼”;”

php -r “echo date(‘Y/m’,strtotime(‘-3 months’,strtotime(’2013/05/28′))) . ＼”＼n＼”;”

php -r “echo date(‘Y/m’,strtotime(‘-3 months’,strtotime(’2013/05/29′))) . ＼”＼n＼”;”

strtotime('first day of last month');
strtotime('last day of last month');
strtotime('first of last week');
strtotime('first of this week');
strtotime('this week midnight'); // returns Monday midnight of this week
strtotime('last week midnight'); // returns Monday midnight of last week
strtotime('last week Sunday midnight'); // returns Sunday midnight of this week
strtotime('-2 weeks Sunday midnight'); // returns Sunday midnight of last week

<?php
date_default_timezone_set('Asia/Shanghai');
$first_day_of_month = date('Y-m',time()) . '-01 00:00:01';
$t = strtotime($first_day_of_month);
print_r(array(

date('Y年m月',$t),
date('Y年m月',strtotime('- 1 month',$t)),
date('Y年m月',strtotime('- 2 month',$t)),
));
?>

display_errors = on

error_reporting = E_ALL & ~E_DEPRECATED

<?php
//禁用错误报告 
error_reporting(0); 
//报告运行时错误 
error_reporting(E_ERROR | E_WARNING | E_PARSE); 
//报告所有错误 
error_reporting(E_ALL); 
?>

$ch = curl_init();   
$curl_opt = array(
  CURLOPT_URL=>"http://www.111cn.net",
  CURLOPT_RETURNTRANSFER=>1,
  CURLOPT_TIMEOUT=>1
);   
curl_setopt_array($ch, $curl_opt);
curl_exec($ch);
curl_close($ch);

$nowcode=time();
$nowcode=strtotime(now);

$date=date("Y-m-d",getdatecode($a));

$date3=date('Y-m-d H:i:s',"1228348800");

(1)打印明天此时的时间戳strtotime(”+1 day“)
当前时间：echo date(”Y-m-d H:i:s”,time()) 结果：2009-01-22 09:40:25
指定时间：echo date(”Y-m-d H:i:s”,strtotime(”+1 day”)) 结果：2009-01-23 09:40:25

(2)打印昨天此时的PHP时间戳strtotime(”-1 day“)
当前时间：echo date(”Y-m-d H:i:s”,time()) 结果：2009-01-22 09:40:25
指定时间：echo date(”Y-m-d H:i:s”,strtotime(”-1 day”)) 结果：2009-01-21 09:40:25

(3)打印下个星期此时的时间戳strtotime(”+1 week“)
当前时间：echo date(”Y-m-d H:i:s”,time()) 结果：2009-01-22 09:40:25
指定时间：echo date(”Y-m-d H:i:s”,strtotime(”+1 week”)) 结果：2009-01-29 09:40:25

(4)打印上个星期此时的时间戳strtotime(”-1 week“)
当前时间：echo date(”Y-m-d H:i:s”,time()) 结果：2009-01-22 09:40:25
指定时间：echo date(”Y-m-d H:i:s”,strtotime(”-1 week”)) 结果：2009-01-15 09:40:25

(5)打印指定下星期几的PHP时间戳strtotime(”next Thursday“)
当前时间：echo date(”Y-m-d H:i:s”,time()) 结果：2009-01-22 09:40:25
指定时间：echo date(”Y-m-d H:i:s”,strtotime(”next Thursday”)) 结果：2009-01-29 00:00:00

(6)打印指定上星期几的时间戳strtotime(”last Thursday“)
当前时间：echo date(”Y-m-d H:i:s”,time()) 结果：2009-01-22 09:40:25
指定时间：echo date(”Y-m-d H:i:s”,strtotime(”last Thursday”)) 结果：2009-01-15 00:00:00