Smart tag (e:loop)
Format:
[e:loop={栏目ID/专题ID,显示条数,操作类型,只显示有标题图片,附加SQL条件,显示排序}] 模板代码内容 [/e:loop]
Example:
<table width="100%" border="0" cellspacing="1" cellpadding="3"> [e:loop={栏目ID/专题ID,显示条数,操作类型,只显示有标题图片,附加SQL条件,显示排序}] <tr><td> <a href="<?=$bqsr[titleurl]?>" target="_blank"><?=$bqr[title]?></a> (<?=date('Y-m-d',$bqr[newstime])?>) </td></tr> [/e:loop] </table>
Tag description: Smart tags do not require a tag template, and the template content is PHP code, so it is more flexible and can use all PHP processing functions. To use this tag, you need to enable template support program code (parameter settings).
Parameters:
- Column ID/Topic ID: Click here to view the column ID, click here to view the topic ID, current ID = 'selfinfo', multiple column IDs and topic IDs are available, open the number, such as '1,2'.
- Show number of records: Display the first few records.
- Operation type: See the operation type description for details.
- Only display images with captions: 0 means no restrictions, 1 means only display information about images with captions.
- Additional SQL conditions: Additional calling conditions, such as: "title='Empire'".
- Display sorting: You can specify to sort by the corresponding field, such as: "id desc".
Variable description:
- $bqr: $bqr[field name]: Display the content of the field
- $bqsr: $bqsr[titleurl]: title link, $bqsr[classname]: column name, $bqsr[classurl]: column link
- $bqno: $bqno: is the calling sequence number
- $public_r:$public_r[newsurl]:Website address
Introduction to commonly used functions:
Text interception: esub(string, interception length), example: esub($bqr[title],30) intercepts the first 30 characters of the title.
Time format: date('format string', time field), example: date('Y-m-d',$bqr[newstime]) The time display format is "2008-10-01".
Example 1: If the information is for the current day, add the New mark
This function implements the display of the New logo image when calling information if it is the latest information released that day.
<ul> [e:loop={栏目ID,显示条数,操作类型,只显示有标题图片}] <? $newimg=""; if(date("m-d",$bqr[truetime]) == date("m-d")) { $newimg = "<img src='New图片地址' alt="How to use the smart tag e:loop_PHP of Empire CMS" >"; } ?> <li> <a href="<?=$bqsr[titleurl]?>" target="_blank"><?=sub($bqr[title],0,10,false)?></a><?=$newimg?> </li> [/e:loop] </ul>
Instructions: First define newimg as empty. If the date = today, the New picture will be displayed. Use =$newimg?> to call it at the appropriate position you want.
Example 2: Using SQL in smart tags
[e:loop={'select * from phome_ecms_news where classid=72 order by id DESC limit 6',6,24,0}], note that the second to last parameter is 24 before SQL can be used.
[e:loop={'select * from [!db.pre!]ecms_news where classid=72 and type='开发商' order by id DESC limit 6',6,24,0}] <li class="class1"> <a href='http://www.hkqipilang.acafa.com/' target=_blank title='<?=$bqr[title]?>'><?=$bqr[title]?></a> <div class="top_div_myAcafa_u"><?=$bqr[address]?><br />业务范围: <?=$bqr[smalltext]?></div> </li> [/e:loop]
Example 3: If the message has image information, the title will have an image logo
[e:loop={'selfinfo',20,0,0}] <? $newimg=""; if(!empty($bqr[titlepic])) { $newimg="<img src='http://www.bkjia.com/uploads/allimg/140411/2300255O2-0.gif' / alt="How to use the smart tag e:loop_PHP of Empire CMS" >"; } ?> <tr class="even"> <td class="title"> <h1><a href="<?=$bqsr[titleurl]?>" target="_blank"><?=sub($bqr[title],0,24,false)?></a> <?=$newimg?></h1> <p class="intro"> <?=$bqr[smalltext]?>[<a title="阅读全文" href="<?=$bqsr[titleurl]?>" target="_blank">详细内容</a>] </p> </td> <td><?=$bqr[myarea]?></td> <td><?=date('Y-m-d H:i:s', $bqr[newstime])?></td> </tr> [/e:loop]
To display fields, use =$bqr[field]?>, $bqsr has just a few variables:
- $bqsr[titleurl]: title link
- $bqsr[classname]: Column name
- $bqsr[classurl]: Column link
- $bqsr[titleurl]: title link
- $bqsr[classname]: Column name
- $bqsr[classurl]: Column link
Except these, all others use $bqr.

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

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PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

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.


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