怎么简写代码-PHP Tutorial-php.cn

Table of Contents

回复讨论(解决方案)

Home

Backend Development

PHP Tutorial

怎么简写代码

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 23, 2016 pm 02:38 PM

if($_MODULE[huoqubaobei]=="2"){$arr = explode(',',$_MODULE[item_1]);  foreach($arr as $value){		  		   $item=$itemManager-> queryById ($value);		       $itemUrl = $uriManager->detailURI($item);                 $itemPicUrl = $item->getPicUrl(160);               $itemTitle = $item->title;                 $itemPrice = $item->price;                $itemsoldCount = $item->soldCount;								echo $itemUrl;				echo $itemPicUrl;				echo $itemTitle;				echo $itemPrice;				echo $itemsoldCount;						   }}else if($_MODULE[huoqubaobei]=="1"){		  $items=$itemManager->queryByKeyword("","hotsell",9);			 				  foreach($items as $item ){							       $itemUrl = $uriManager->detailURI($item);                 $itemPicUrl = $item->getPicUrl(160);               $itemTitle = $item->title;                 $itemPrice = $item->price;                $itemsoldCount = $item->soldCount; 					echo $itemUrl;				echo $itemPicUrl;				echo $itemTitle;				echo $itemPrice;				echo $itemsoldCount; 				   }}else if($_MODULE[huoqubaobei]=="3"){	   $items = $itemManager->queryByCategory($categoryId,"hotsell",10);     foreach($items as $item){		       $itemUrl = $uriManager->detailURI($item);                 $itemPicUrl = $item->getPicUrl(160);               $itemTitle = $item->title;                 $itemPrice = $item->price;                $itemsoldCount = $item->soldCount; 					echo $itemUrl;				echo $itemPicUrl;				echo $itemTitle;				echo $itemPrice;				echo $itemsoldCount;		 }}else{	     $itemUrl ="#";                 $itemPicUrl = "assets/images/nvtp.jpg";               $itemTitle = "请添加宝贝描述请添加宝贝描述请添加宝贝描述请";                 $itemPrice = 628;                $itemsoldCount =89; 					echo $itemUrl;				echo $itemPicUrl;				echo $itemTitle;				echo $itemPrice;				echo $itemsoldCount;}

Copy after login

怎么简写哈
echo $itemPicUrl;
echo $itemTitle;
echo $itemPrice;
echo $itemsoldCount;
怎么不让他们重复写

我本来想都加到数组里然后循环但这样运行性能不行谁有更好的方法

回复讨论(解决方案)

你在每个分支里输出同样的一组变量？
为何不在条件结构出来后在输出？

if($_MODULE[huoqubaobei]=="2"){	$arr = explode(',',$_MODULE[item_1]);	foreach($arr as $value)	{	    $items=$itemManager-> queryById ($value);    }}elseif($_MODULE[huoqubaobei]=="1"){      $items=$itemManager->queryByKeyword("","hotsell",9);}elseif($_MODULE[huoqubaobei]=="3"){      $items = $itemManager->queryByCategory($categoryId,"hotsell",10);}if($items) {	foreach($items as $item)	{	    $itemUrl = $uriManager->detailURI($item); 		$itemPicUrl = $item->getPicUrl(160);	    $itemTitle = $item->title;		$itemPrice = $item->price;		$itemsoldCount = $item->soldCount; 		echo $itemUrl;		echo $itemPicUrl;		echo $itemTitle;		echo $itemPrice;		echo $itemsoldCount;	 }}else{	$itemUrl ="#";     $itemPicUrl = "assets/images/nvtp.jpg";    $itemTitle = "请添加宝贝描述请添加宝贝描述请添加宝贝描述请";	$itemPrice = 628;	$itemsoldCount =89; 	echo $itemUrl;	echo $itemPicUrl;	echo $itemTitle;	echo $itemPrice;	echo $itemsoldCount;}

Copy after login

if($_MODULE[huoqubaobei]=="2"){	$arr = explode(',',$_MODULE[item_1]);	foreach($arr as $value)	{	    $items=$itemManager-> queryById ($value);    }}elseif($_MODULE[huoqubaobei]=="1"){      $items=$itemManager->queryByKeyword("","hotsell",9);}elseif($_MODULE[huoqubaobei]=="3"){      $items = $itemManager->queryByCategory($categoryId,"hotsell",10);}if($items) {	foreach($items as $item)	{	    $itemUrl = $uriManager->detailURI($item); 		$itemPicUrl = $item->getPicUrl(160);	    $itemTitle = $item->title;		$itemPrice = $item->price;		$itemsoldCount = $item->soldCount; 		echo $itemUrl;		echo $itemPicUrl;		echo $itemTitle;		echo $itemPrice;		echo $itemsoldCount;	 }}else{	$itemUrl ="#";     $itemPicUrl = "assets/images/nvtp.jpg";    $itemTitle = "请添加宝贝描述请添加宝贝描述请添加宝贝描述请";	$itemPrice = 628;	$itemsoldCount =89; 	echo $itemUrl;	echo $itemPicUrl;	echo $itemTitle;	echo $itemPrice;	echo $itemsoldCount;}

Copy after login

哈哈你还是重复了最后面

if($_MODULE[huoqubaobei]=="2"){	$arr = explode(',',$_MODULE[item_1]);	foreach($arr as $value)	{	    $items=$itemManager-> queryById ($value);    }}elseif($_MODULE[huoqubaobei]=="1"){      $items=$itemManager->queryByKeyword("","hotsell",9);}elseif($_MODULE[huoqubaobei]=="3"){      $items = $itemManager->queryByCategory($categoryId,"hotsell",10);}if($items) {	foreach($items as $item)	{	    $itemUrl = $uriManager->detailURI($item); 		$itemPicUrl = $item->getPicUrl(160);	    $itemTitle = $item->title;		$itemPrice = $item->price;		$itemsoldCount = $item->soldCount; 		echo $itemUrl;		echo $itemPicUrl;		echo $itemTitle;		echo $itemPrice;		echo $itemsoldCount;	 }}else{	$itemUrl ="#";     $itemPicUrl = "assets/images/nvtp.jpg";    $itemTitle = "请添加宝贝描述请添加宝贝描述请添加宝贝描述请";	$itemPrice = 628;	$itemsoldCount =89; 	echo $itemUrl;	echo $itemPicUrl;	echo $itemTitle;	echo $itemPrice;	echo $itemsoldCount;}

Copy after login

而且我最后面的else 其实是elseif($_MODULE[huoqubaobei]=="4")

你在每个分支里输出同样的一组变量？
为何不在条件结构出来后在输出？不明白你的意思。。。

你在每个分支里输出同样的一组变量？
为何不在条件结构出来后在输出？不明白你的意思。。。

意思就是，你看每?if else?面都有
echo $itemUrl;
echo $itemPicUrl;
echo $itemTitle;
echo $itemPrice;
echo $itemsoldCount;
可以在?束位置加上，不需要在每?if else?面?。

	$response= '';	switch($_MODULE[huoqubaobei]){		case "2":			$arr = explode(',',$_MODULE[item_1]);			foreach($arr as $value){				$item=$itemManager-> queryById ($value);				$items = array_push($items, $item);			}		case "1":			$items = $itemManager->queryByKeyword("","hotsell",9);		case "3":			$items = $itemManager->queryByCategory($categoryId,"hotsell",10);		default:			$items = array();	}	if($items){		foreach($items as $item){			$itemUrl = $uriManager->detailURI($item); 			$itemPicUrl = $item->getPicUrl(160);			$itemTitle = $item->title;			$itemPrice = $item->price;			$itemsoldCount = $item->soldCount; 			$response .= $itemUrl.$itemPicUrl.$itemTitle.$itemPrice.$itemsoldCount		}	}else{			$itemUrl ="#"; 			$itemPicUrl = "assets/images/nvtp.jpg";			$itemTitle = "请添加宝贝描述请添加宝贝描述请添加宝贝描述请";			$itemPrice = 628;			$itemsoldCount =89;			$response .= $itemUrl.$itemPicUrl.$itemTitle.$itemPrice.$itemsoldCount	}	echo $response;

Copy after login

修改了一下，??才?。

	$response= '';	$items = array();	switch($_MODULE[huoqubaobei]){		case "2":			$arr = explode(',',$_MODULE[item_1]);			foreach($arr as $value){				$item=$itemManager-> queryById ($value);				array_push($items, $item);			}		case "1":			$items = $itemManager->queryByKeyword("","hotsell",9);		case "3":			$items = $itemManager->queryByCategory($categoryId,"hotsell",10);	}	if($items){		foreach($items as $item){			$itemUrl = $uriManager->detailURI($item); 			$itemPicUrl = $item->getPicUrl(160);			$itemTitle = $item->title;			$itemPrice = $item->price;			$itemsoldCount = $item->soldCount; 			$response .= $itemUrl.$itemPicUrl.$itemTitle.$itemPrice.$itemsoldCount		}	}else{			$itemUrl ="#"; 			$itemPicUrl = "assets/images/nvtp.jpg";			$itemTitle = "请添加宝贝描述请添加宝贝描述请添加宝贝描述请";			$itemPrice = 628;			$itemsoldCount =89;			$response .= $itemUrl.$itemPicUrl.$itemTitle.$itemPrice.$itemsoldCount	}	echo $response;

Copy after login

这段代码其实应该写成类并继承$itemManager的类（或组成对象链）会更好

1、形如

echo $itemUrl;echo $itemPicUrl;echo $itemTitle;echo $itemPrice;echo $itemsoldCount;

Copy after login

的可简化为

show($itemUrl, $itemPicUrl, $itemTitle, $itemPrice, $itemsoldCount);function show() {  echo join('', func_get_args());}

Copy after login

函数 show 中可做各种美化工作

2、原式就可写作

if($_MODULE[huoqubaobei]=="2"){$arr = explode(',',$_MODULE[item_1]);	 foreach($arr as $value){		$item=$itemManager-> queryById ($value);		show($uriManager->detailURI($item),			$item->getPicUrl(160),			$item->title,			$item->price,			$item->soldCount			);	}}else if($_MODULE[huoqubaobei]=="1"){	$items=$itemManager->queryByKeyword("","hotsell",9);	foreach($items as $item ){		show($uriManager->detailURI($item),			$item->getPicUrl(160),			$item->title,			$item->price,			$item->soldCount			);	}}else if($_MODULE[huoqubaobei]=="3"){	$items = $itemManager->queryByCategory($categoryId,"hotsell",10);	foreach($items as $item){		show($uriManager->detailURI($item),			$item->getPicUrl(160),			$item->title,			$item->price,			$item->soldCount			);	}}else{	show("#",		"assets/images/nvtp.jpg",		"请添加宝贝描述请添加宝贝描述请添加宝贝描述请",		628,		89,		);}

Copy after login

3、考虑到前三个分支存在相同的取数方法，于是可以再写一个函数

function item_show($items, $uriManager) {	foreach($items as $item){		show($uriManager->detailURI($item),			$item->getPicUrl(160),			$item->title,			$item->price,			$item->soldCount			);	}}

Copy after login

4、代码就进一步变为

if($_MODULE[huoqubaobei]=="2"){$arr = explode(',',$_MODULE[item_1]);	 foreach($arr as $value){		items_show(array($itemManager->queryById($value)), $uriManager);	}}else if($_MODULE[huoqubaobei]=="1"){	items_show($itemManager->queryByKeyword("","hotsell",9), , $uriManager);}else if($_MODULE[huoqubaobei]=="3"){	items_show($itemManager->queryByCategory($categoryId,"hotsell",10), $uriManager);}else{	show("#",		"assets/images/nvtp.jpg",		"请添加宝贝描述请添加宝贝描述请添加宝贝描述请",		628,		89,		);}function show() {	echo join('', func_get_args());}function items_show($items, $uriManager) {	foreach($items as $item){		show($uriManager->detailURI($item),			$item->getPicUrl(160),			$item->title,			$item->price,			$item->soldCount			);	}}

Copy after login

哈哈最后一楼是对的

修改了一下，??才?。

	$response= '';	$items = array();	switch($_MODULE[huoqubaobei]){		case "2":			$arr = explode(',',$_MODULE[item_1]);			foreach($arr as $value){				$item=$itemManager-> queryById ($value);				array_push($items, $item);			}		case "1":			$items = $itemManager->queryByKeyword("","hotsell",9);		case "3":			$items = $itemManager->queryByCategory($categoryId,"hotsell",10);	}	if($items){		foreach($items as $item){			$itemUrl = $uriManager->detailURI($item); 			$itemPicUrl = $item->getPicUrl(160);			$itemTitle = $item->title;			$itemPrice = $item->price;			$itemsoldCount = $item->soldCount; 			$response .= $itemUrl.$itemPicUrl.$itemTitle.$itemPrice.$itemsoldCount		}	}else{			$itemUrl ="#"; 			$itemPicUrl = "assets/images/nvtp.jpg";			$itemTitle = "请添加宝贝描述请添加宝贝描述请添加宝贝描述请";			$itemPrice = 628;			$itemsoldCount =89;			$response .= $itemUrl.$itemPicUrl.$itemTitle.$itemPrice.$itemsoldCount	}	echo $response;

Copy after login

$itemUrl ="#";
$itemPicUrl = "assets/images/nvtp.jpg";
$itemTitle = "请添加宝贝描述请添加宝贝描述请添加宝贝描述请";
$itemPrice = 628;
$itemsoldCount =89;
$response .= $itemUrl.$itemPicUrl.$itemTitle.$itemPrice.$itemsoldCount
怎么写到循环上

最後一?情?不是不用循??？
如果要循?，需要提供循?的次?。

最後一?情?不是不用循??？
如果要循?，需要提供循?的次?。

foreach($items as $item){ 次数跟他一样

最后一?情?，你的items都?有?取，如何循?？

最后一?情?，你的items都?有?取，如何循?？

其实他前面if($items)判断是不对的不能这样判断

我最后面是else if($_MODULE[huoqubaobei]=="4") 判断的

没看到有什么东西要循环的。。
else
{
$itemUrl ="#";
$itemPicUrl = "assets/images/nvtp.jpg";
$itemTitle = "请添加宝贝描述请添加宝贝描述请添加宝贝描述请";
$itemPrice = 628;
$itemsoldCount =89;
echo $itemUrl;
echo $itemPicUrl;
echo $itemTitle;
echo $itemPrice;
echo $itemsoldCount;
}

1、形如

echo $itemUrl;echo $itemPicUrl;echo $itemTitle;echo $itemPrice;echo $itemsoldCount;

Copy after login

的可简化为

show($itemUrl, $itemPicUrl, $itemTitle, $itemPrice, $itemsoldCount);function show() {  echo join('', func_get_args());}

Copy after login

函数 show 中可做各种美化工作

2、原式就可写作

if($_MODULE[huoqubaobei]=="2"){$arr = explode(',',$_MODULE[item_1]);	 foreach($arr as $value){		$item=$itemManager-> queryById ($value);		show($uriManager->detailURI($item),			$item->getPicUrl(160),			$item->title,			$item->price,			$item->soldCount			);	}}else if($_MODULE[huoqubaobei]=="1"){	$items=$itemManager->queryByKeyword("","hotsell",9);	foreach($items as $item ){		show($uriManager->detailURI($item),			$item->getPicUrl(160),			$item->title,			$item->price,			$item->soldCount			);	}}else if($_MODULE[huoqubaobei]=="3"){	$items = $itemManager->queryByCategory($categoryId,"hotsell",10);	foreach($items as $item){		show($uriManager->detailURI($item),			$item->getPicUrl(160),			$item->title,			$item->price,			$item->soldCount			);	}}else{	show("#",		"assets/images/nvtp.jpg",		"请添加宝贝描述请添加宝贝描述请添加宝贝描述请",		628,		89,		);}

Copy after login

3、考虑到前三个分支存在相同的取数方法，于是可以再写一个函数

function item_show($items, $uriManager) {	foreach($items as $item){		show($uriManager->detailURI($item),			$item->getPicUrl(160),			$item->title,			$item->price,			$item->soldCount			);	}}

Copy after login

4、代码就进一步变为

if($_MODULE[huoqubaobei]=="2"){$arr = explode(',',$_MODULE[item_1]);	 foreach($arr as $value){		items_show(array($itemManager->queryById($value)), $uriManager);	}}else if($_MODULE[huoqubaobei]=="1"){	items_show($itemManager->queryByKeyword("","hotsell",9), , $uriManager);}else if($_MODULE[huoqubaobei]=="3"){	items_show($itemManager->queryByCategory($categoryId,"hotsell",10), $uriManager);}else{	show("#",		"assets/images/nvtp.jpg",		"请添加宝贝描述请添加宝贝描述请添加宝贝描述请",		628,		89,		);}function show() {	echo join('', func_get_args());}function items_show($items, $uriManager) {	foreach($items as $item){		show($uriManager->detailURI($item),			$item->getPicUrl(160),			$item->title,			$item->price,			$item->soldCount			);	}}

Copy after login

这段才是最省事的！

还可以这样写~

你在每个分支里输出同样的一组变量？
为何不在条件结构出来后在输出？不明白你的意思。。。

把那些变量的地方都放到外面来

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Roblox: Grow A Garden - Complete Mutation Guide

3 weeks ago By DDD

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys

3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

How to fix KB5055612 fails to install in Windows 10?

3 weeks ago By DDD

Nordhold: Fusion System, Explained

3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook

3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial

1665

CakePHP Tutorial

1423

Laravel Tutorial

1321

PHP Tutorial

1269

C# Tutorial

1249

Related knowledge

PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1? Apr 17, 2025 am 12:06 AM

In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

PHP in Action: Real-World Examples and Applications Apr 14, 2025 am 12:19 AM

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP: A Key Language for Web Development Apr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

The Enduring Relevance of PHP: Is It Still Alive? Apr 14, 2025 am 12:12 AM

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

How does PHP type hinting work, including scalar types, return types, union types, and nullable types? Apr 17, 2025 am 12:25 AM

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.

PHP and Python: Code Examples and Comparison Apr 15, 2025 am 12:07 AM

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP vs. Other Languages: A Comparison Apr 13, 2025 am 12:19 AM

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

See all articles