This article mainly introduces the DedeCms custom field call length interception method. Friends in need can refer to it. For example, the called field is the test dedecms template download address: www.php.cn/xiazai/code/dedecms Method 1: Run the php method.. [field:test runphp=yes] @me= substr (@me, intercept bytes) [/field:test] Method 2: Call the built-in function method [field:test function='cn_substr(@me, intercept bytes)'/] The two methods are actually similar. The second method is more suitable for Chinese interception. Yes The effect of the built-in function encapsulated by dedecms is much better than the first one..
1. Two methods for length interception of DedeCms custom field call
Introduction: This article mainly introduces the DedeCms custom field call length interception method. Friends in need can refer to it
Introduction: GRIDVIEW: A brief analysis of common operations of GridView in Yii2: This article is for everyone to collect and sort out most of the problems that arise in GridView on the Internet. This article makes a summary and shares it on the Script Home platform for your reference. If there are any frequently asked questions about GridView that are not mentioned below, leave a message below and I will add them. Drop-down search Date formatting and implementation Date can be searched according to parameters Whether to display links Clickable to jump to display pictures HTML rendering Custom buttons Set width and other styles Custom fields Custom row styles Add buttons Call js operations yii2 GridView Drop-down search implementation case Tutorial yii2
3. wordpress custom field output code design_PHP tutorial
Introduction: wordpress custom field Output code design. !--For example, if this is a slideshow-- div class=flexslider ?php if ( have_posts() ) :the_post(); ? ul class=slides ?php $images = get_post_meta($post-ID, images, false); //一
4. phpcms recommendation bit cannot call custom fields_PHP tutorial
Introduction : The phpcms recommendation bit cannot call custom fields. By default, phpcms cannot use the recommended bit to call custom fields. If you directly write {pc:content action=position posid=30 catid=24 order=listorder DESC num=4}, there will be no error, but it cannot be adjusted.
5. Related PHP function analysis for writing custom storage fields in WordPress, _PHP tutorial
Introduction: Writing custom storage in WordPress Field related PHP function parsing,. Analysis of relevant PHP functions for writing custom storage fields in WordPress. The custom fields of WordPress are the meta information (meta information) of the article. Using this function, you can expand the
6 of the article. Add custom fields and background editing functional areas to articles in WordPress, _PHP tutorial
Introduction: Add custom fields and background editing functional areas to articles in WordPress, . Add custom fields and background editing functional areas to articles in WordPress. The add_post_meta add_post_meta function is a function in WordPress used to add custom field values to articles or pages.
##7. The get_post_custom() function in WordPress development uses analysis, wordpressgetpost_PHP tutorial
Introduction: The get_post_custom() function in WordPress development uses analysis, wordpressgetpost. The get_post_custom() function in WordPress development uses parsing. WordPressgetpost is the same as get_post_meta(). The custom field used to return the article deserves a function, except get_post_cu
8. After dedecms customizes the field, the input box of the custom field does not appear
Introduction: After dedecms customizes the field, the input box of the custom field does not appear
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PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

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.

In PHP, use the clone keyword to create a copy of the object and customize the cloning behavior through the \_\_clone magic method. 1. Use the clone keyword to make a shallow copy, cloning the object's properties but not the object's properties. 2. The \_\_clone method can deeply copy nested objects to avoid shallow copying problems. 3. Pay attention to avoid circular references and performance problems in cloning, and optimize cloning operations to improve efficiency.

PHP is suitable for web development and content management systems, and Python is suitable for data science, machine learning and automation scripts. 1.PHP performs well in building fast and scalable websites and applications and is commonly used in CMS such as WordPress. 2. Python has performed outstandingly in the fields of data science and machine learning, with rich libraries such as NumPy and TensorFlow.


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