How to print sql statement in yii2?
How to print sql statements in yii2: You can execute the statement in the controller, the code is [$model->find()->createCommand()->getRawSql();], click the log at the bottom of the web page to see the sql statement .
Jul 21, 2020 pm 03:35 PM
Where to download Yii?
Yii can be downloaded and installed through Composer. The installation method: first open the CMD command line; then enter the command "composer create-project yiisoft/yii2-app-basic basic"; finally press Enter and wait for the installation to be successful.
Jul 21, 2020 pm 01:27 PM
How to add prefix to table in yii2
How to prefix a table in yii2: first find and open the database configuration related files; then set the table prefix through the statement "'tablePrefix'=>'colin_'", which means that the table prefix has been set to "colin_".
Jul 21, 2020 pm 12:01 PM
Solve the problem of being unable to receive emails sent by yii2
The solution to the failure to receive emails sent by yii2: first find and open the configuration file code; then change the code "'useFileTransport' => true" to "'useFileTransport' => false,"; finally save the changes.
Jul 21, 2020 am 11:54 AM
What is Yii in yii2
Yii in yii2 is a framework core class, and the lowercase yii in yii2 is the namespace path; Yii has two main versions, namely 2.0 and 1.1, and the latest stable version of yii is the yii2 version.
Jul 21, 2020 am 11:49 AM
What are the differences between yii2.0 and laravel?
The differences between yii2.0 and laravel are: 1. Under the trend of complete separation of front and back ends, the coupling of yii2's front and back ends is heavier than that of laravel; 2. yii will not over-design the code for a certain design pattern, while laravel is a bit Over-designed; 3. The laravel community is relatively active and rich in resources.
Jul 21, 2020 am 11:34 AM
How to print sql in yii2
The method of printing sql in yii2: first query the structure through the statement "Article::find()->joinWith('articleClass');"; then call the createComment and getSql methods; finally print it out through "var_dump".
Jul 21, 2020 am 10:40 AM
What should I do if I get an error when calling a stored procedure in Yii?
The solution to the error when yii calls the stored procedure: first check the exceptions thrown after the "MYPROC" statement is called; then according to the information prompt, add the statement "SET NOCOUNT ON;" to the stored procedure.
Jul 21, 2020 am 10:36 AM
How to display debugging information in yii
How to display debugging information in yii: first add the statement "defined('YII_DEBUG') or define('YII_DEBUG',true);" to the entry file; then turn on the page display mode; and finally configure the database.
Jul 21, 2020 am 10:31 AM
What projects is the Yii framework suitable for developing?
Yii is a general web programming framework that can develop any type of web application. One of the advantages of this framework is that it has a very good and powerful caching component, so it is more suitable for developing high-traffic applications, such as portals, forums, content management systems, etc. E-commerce systems and so on.
Jul 20, 2020 pm 05:45 PM
Does the Yii framework use a template engine?
The Yii framework does not use a template engine. Yii still uses original PHP as the template syntax. The framework is a high-performance component-based PHP framework for developing large-scale Web applications. It is written in strict OOP and provides the requirements for Web application development. almost all functions.
Jul 20, 2020 pm 05:34 PM
How to block error prompts in Yii
How to block error prompts in yii: first open the entry file "index.php"; then add "error_reporting (0);"; and finally comment "defined('YII_DEBUG') or define('YII_DEBUG',true);" .
Jul 20, 2020 am 11:14 AM
How to solve the problem that the yii2 virtual machine cannot open gii
The yii2 virtual machine cannot open gii because the default Gii under Linux can only be accessed through "127.0.0.1". The solution is to add your own IP in "conf/main-local.php".
Jul 20, 2020 am 11:09 AM
What is the reason why yii2 responds too slowly?
The reason why yii2 responds too slowly is that when php5.3 or above encounters localhost, it will consider whether it is ipv4 or ipv6, which will lead to a long response time. The solution is to change "localhost" to "127.0.0.1 "That's it.
Jul 20, 2020 am 11:05 AM
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