在PHP中可以轻松的使用下面的语句实现禁止页面缓存,但比较难记特整理下,方便大家使用。
php代码
代码如下 | 复制代码 |
<? php // 设置此页面的过期时间(用格林威治时间表示),只要是已经过去的日期即可。 // 设置此页面的最后更新日期(用格林威治时间表示)为当天,可以强制浏览器获取最新资料 ?> |
这对于某些页面来说是很有用的,例如:单信息以及订单下的商品,并且清空购物车对应商品数据。
肯定不希望用户到了最后一个页面,都已经生成订单了,再点浏览器的返回按钮回到前一个页面。
那么在订单地址页面加入:
代码如下 | 复制代码 |
header("Cache-Control:no-cache,must-revalidate,no-store"); //这个no-store加了之后,Firefox下有效 |
这个页面不缓存了,并且有个判断购物车商品为空就跳转到空购物车的页面,那么用户点击浏览器后退,回来之后,也直接到 购物车页面了。
今天公司在做一个数据与app对接的功能,对方转过来的是json转义之后的数据,但又不是标准的json格式化数据,我们直接使用json_decode是输入原字符了,下面一起来看年解决办法吧。代码如下
\u5c0f\u533a\u7eff\u5316\u5f88\u4e0d\u9519|||\u4e8c\u671f\u4ec0\u4e48\u65f6\u5019\u4ea4\u623f\u7684|||\u4e8c\u671f\u4ea4\u623f\u4e86|||\u548c\u683c\u6797\u4e91\u5885\u79bb\u5f97\u5f88\u8fd1|||\u5730\u7406\u4f4d\u7f6e
上面代码有人能看懂吗?我估计没人了,我知道是json了所以取一段出来测试
代码如下 | 复制代码 |
echo json_decode('u683c\u8fd8\u4e0d\u9519'); |
发现什么出没有输入,后来想这个不是标准json我们可以使用一个数组再转换看一下
代码如下 | 复制代码 |
$array =array('u683c\u8fd8\u4e0d\u9519'); 得到结果是 ["u683c\\u8fd8\\u4e0d\\u9519"] |
这不是标准json格式数据吧,于时我再进一步解析
代码如下 | 复制代码 |
$array = json_decode('["\u4e8c\u671f\u4ec0\u4e48\u65f6\u5019\u4ea4\u623f\u7684"]'); print_r($array ); ( |
是乱码呀,这个我估计是编码问题,我知道json转换编码是uft8的而我页面是gbk了,于时找到iconv函数
代码如下 | 复制代码 |
$array = json_decode('["\u4e8c\u671f\u4ec0\u4e48\u65f6\u5019\u4ea4\u623f\u7684"]'); echo iconv('utf-8','gbk',$array[0]); |
得出结果是
二期什么时候交房的
这样就成功把乱码转换成中文了哦,大家试一下
本站原创教程:转载注明来源http://www.111cn.net
微信公众号开发代码我在网上看到了有不少,其实都是大同小义了都是参考官方给出的demo文件进行修改的,下面给各位分享一个。初次接触的时候写的一些,有点乱…也没去整理…
ps–最近都不想工作了,各种烦,午饭也没吃,就是想表达一下我过的不好。–请忽略个人情绪往下看。
代码如下 | 复制代码 |
<?php * |
这是magento脚本的另外一种写法。
个人觉得写的还行,高手莫见笑。
用SplFileObject来处理大数据的csv文件效率高
代码如下 | 复制代码 |
<?php require_once 'shell/abstract.php'; class Faarao_Import_Customer extends Mage_Shell_Abstract { protected $_files = array(); protected $_datas = array(); public function __construct() { parent::__construct(); set_time_limit(0); if($this->getArg('file')) { $this->_files = array_merge( $this->_files, array_map( 'trim', explode(',', $this->getArg('file')) ) ); foreach ($this->_files as $key=>$file) { $extension = self::get_extension($file); if($extension != 'csv'){ unset($this->_files[$key]); } } } if(empty($this->_files)){ die(self::usageHelp()); } } // Shell script point of entry public function run() { self::getDataFromCsv(); if(empty($this->_datas)){ die("not found data in csv ! \r\n"); } $emailBooks = array(); foreach ($this->_datas as $name => $datas) { echo "filename: {$name} =======================\r\n"; $importNum = 0; foreach ($datas as $key => $data) { if(empty(trim($data[4]))){ continue; } $customerData['firstname'] = trim($data[0]); $customerData['lastname'] = trim($data[1]); $customerData['phone'] = trim($data[2]); $customerData['mobile'] = trim($data[3]); $customerData['email'] = trim($data[4]); $customerData['company'] = trim($data[5]); $customerData['billing_address'] = $data[6] . $data[7] . $data[8]; $customerData['billing_postcode'] = sprintf("%05d",trim($data[9])); $customerData['billing_city'] = trim($data[10]); $customerData['billing_country'] = trim($data[11]); $customerData['shipping_address'] = $data[12] . $data[13] .$data[14]; if(empty($data[15]) && is_numeric($data[16])){ $customerData['shipping_postcode'] = sprintf("%05d",trim($data[16])); $customerData['shipping_city'] = trim($data[17]); $customerData['shipping_country'] = trim($data[18]); }else{ $customerData['shipping_postcode'] = sprintf("%05d", trim($data[15]));; $customerData['shipping_city'] = trim($data[16]); $customerData['shipping_country'] = trim($data[17]); } // $customerData['email'] = 'zouhongzhao@126.com'; $customerData['country'] = 'Finland'; $customerData['password'] = self::randomkeys(10); echo "customer email {$customerData['email']} ...\r\n"; print_r($customerData); $customer = Mage::getModel('customer/customer'); $customer->setWebsiteId(Mage::app()->getWebsite()->getId()); $customer->loadByEmail($customerData['email']); if(!$customer->getId()) { echo "insert ... \r\n"; $customer->setEmail($customerData['email']); $customer->setFirstname($customerData['firstname']); $customer->setLastname($customerData['lastname']); $customer->setPassword($customerData['password']); }else{ echo "update ... \r\n"; } try { $customer->save(); $customer->setConfirmation(null); $customer->save(); //Make a "login" of new customer Mage::getSingleton('customer/session')->loginById($customer->getId()); $importNum ++; $emailBooks[$customerData['email']] = array( 'firstname'=>$customerData['firstname'], 'lastname'=>$customerData['lastname'], 'customer_mage_id'=>$customer->getId(), 'passwd'=>$customerData['password'] ); echo "customer save ok !\r\n"; } catch (Exception $ex) { echo "customer save fail !\r\n"; continue; } if(trim($customerData['billing_address']) == trim($customerData['shipping_address']) && $customerData['billing_postcode'] == $customerData['shipping_postcode'] && $customerData['billing_city'] == $customerData['shipping_city']){ $same_address = array ( 'firstname' => $customerData['firstname'], 'lastname' => $customerData['lastname'], 'street' => $customerData['billing_address'], 'company' => $customerData['company'], 'city' => $customerData['billing_city'], 'region_id' => '', 'region' => '', 'postcode' => $customerData['billing_postcode'], 'country_id' => 'FI', 'telephone' => $customerData['phone'], ); $customAddress = Mage::getModel('customer/address'); //$customAddress = new Mage_Customer_Model_Address(); $customAddress->setData($same_address) ->setCustomerId($customer->getId()) ->setIsDefaultBilling('1') ->setIsDefaultShipping('1') ->setSaveInAddressBook('1'); try { $customAddress->save(); echo "sameAddress save ok !\r\n"; } catch (Exception $ex) { echo "sameAddress save fail !\r\n"; continue; } }else{ $billing_address = array ( 'firstname' => $customerData['firstname'], 'lastname' => $customerData['lastname'], 'street' => $customerData['billing_address'], 'company' => $customerData['company'], 'city' => $customerData['billing_city'], 'region_id' => '', 'region' => '', 'postcode' => $customerData['billing_postcode'], 'country_id' => 'FI', 'telephone' => $customerData['phone'], ); self::setBillingAddress($billing_address,$customer); $shipping_address = array ( 'firstname' => $customerData['firstname'], 'lastname' => $customerData['lastname'], 'street' => $customerData['shipping_address'], 'company' => $customerData['company'], 'city' => $customerData['shipping_city'], 'region_id' => '', 'region' => '', 'postcode' => $customerData['shipping_postcode'], 'country_id' => 'FI', 'telephone' => $customerData['phone'], ); self::setShippingAddress($shipping_address,$customer); } // die; } echo "import num: {$importNum} =======================\r\n"; } //save passwd $fp = fopen('customer_record.log', 'w'); fwrite($fp, json_encode($emailBooks)); fclose($fp); } public function setBillingAddress($data,$customer){ $customerAddress = Mage::getModel('customer/address'); if ($defaultShippingId = $customer->getDefaultBilling()){ $customerAddress->load($defaultShippingId); } else { $customerAddress ->setCustomerId($customer->getId()) ->setIsDefaultBilling('1') ->setSaveInAddressBook('1') ; $customer->addAddress($customerAddress); } try { $customerAddress ->addData($data) ->save() ; echo "BillingAddress save ok !\r\n"; } catch(Exception $e){ // Mage::log('Address Save Error::' . $e->getMessage()); echo "BillingAddress save fail !\r\n"; } } public function setShippingAddress($data,$customer){ $customerAddress = Mage::getModel('customer/address'); if ($defaultShippingId = $customer->getDefaultShipping()){ $customerAddress->load($defaultShippingId); } else { $customerAddress ->setCustomerId($customer->getId()) ->setIsDefaultShipping('1') ->setSaveInAddressBook('1') ; $customer->addAddress($customerAddress); } try { $customerAddress ->addData($data) ->save() ; echo "ShippingAddress save ok !\r\n"; } catch(Exception $e){ // Mage::log('Address Save Error::' . $e->getMessage()); echo "ShippingAddress save fail !\r\n"; } } public function randomkeys($length) { $returnStr=''; $pattern = '1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLOMNOPQRSTUVWXYZ'; for($i = 0; $i < $length; $i ++) { $returnStr .= $pattern {mt_rand ( 0, 61 )}; } return $returnStr; } public function getDataFromCsv(){ $this->_files = array_unique($this->_files); $csvCustomers = array(); foreach ($this->_files as $filename) { echo "current file: {$filename}\r\n"; setlocale(LC_ALL, 'en_US.UTF-8'); $content = file_get_contents($filename); $data = mb_detect_encoding()($content, 'UTF-8', true); // $data = iconv("CP1257","UTF-8", $content); file_put_contents($filename, $content); // fclose($handle); // print_r($content);die; $basename = basename($filename,".csv"); $data = array(); $tmp = array(); $spl_object = new SplFileObject($filename, 'rb'); $spl_object->seek(filesize($filename)); $start = 0; $num = $spl_object->key(); $spl_object->seek($start); while ($num-- && !$spl_object->eof()) { $data[] = $spl_object->fgetcsv(); $spl_object->next(); } foreach ($data as $key => $values) { if($key == 0){ continue; } $mergeValue = explode(';',implode(';', $values)); // if(count($mergeValue) != 20){ // continue; // } array_push($tmp,$mergeValue); } $this->_datas[$basename] = $tmp; } return $this; } public function get_extension($filename){ return pathinfo($filename,PATHINFO_EXTENSION); } // Usage instructions public function usageHelp() { return <<<USAGE Usage: php tetuan_customer_import.php --file a.csv,b.csv \n USAGE; } } // Instantiate $shell = new Faarao_Import_Customer(); // Initiate script $shell->run(); |
补充:有一些朋友使用的是excel文档,这样这个程序就不可以使用了,我们可以使用phpexcel插件来读取excel文件并写入到数据库中去哦。
生成唯一不重复的标识我们主要是根据当前的一个时间time然后再转换在md5值,这样几乎是可以保证标签的唯一性了,下面整理了一些关于PHP生成不重复标识符程序代码,希望能各位有帮助。PHP倒是自带了生成唯一id的函数:uniqid() ,它是基于当前时间微秒数的,用法如下:
代码如下 | 复制代码 |
echo uniqid(); //13位的字符串 echo uniqid("php_"); //当然你可以加上前缀 echo uniqid("php_", TRUE); //如果第二个参数more_entropy为true则生成23位 |
字符串
但是它生成的标识有可能不是唯一的,所以很多人会:
代码如下 | 复制代码 |
<?php |
例子。
代码如下 | 复制代码 |
<? //sha1()函数, "安全散列算法(SHA1)" function create_unique() { //return $data; } 例子如下: <? |
我看到很多人使用 md5() 函数,即使它并不完全意味着这个目的:
代码如下 | 复制代码 |
// generate unique string There is actually a PHP function named uniqid() that is meant to be used for this. // generate unique string // generate another unique string |
你可能会注意到,尽管字符串是唯一的,前几个字符却是类似的,这是因为生成的字符串与服务器时间相关。
但实际上也存在友好的一方面,由于每个新生成的 ID 会按字母顺序排列,这样排序就变得很简单。
为了减少重复的概率,你可以传递一个前缀,或第二个参数来增加:
代码如下 | 复制代码 |
// with prefix // with more entropy // both |
这个函数将产生比 md5() 更短的字符串,节省一些空间。
php生成全球唯一标识符(GUID)的方法
GUID在空间上和时间上具有唯一性,保证同一时间不同地方产生的数字不同。
世界上的任何两台计算机都不会生成重复的 GUID 值。
需要GUID的时候,可以完全由算法自动生成,不需要一个权威机构来管理。
GUID的长度固定,并且相对而言较短小,非常适合于排序、标识和存储。
代码如下 | 复制代码 |
<?php return $uuid; |