Summary of thinkphp development skills_PHP tutorial-PHP Tutorial-php.cn

Summary of thinkphp development skills_PHP tutorial

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Release： 2016-07-13 10:31:18

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A summary of some skills in the development process using thinkphp. I will continue to add more when I find them in the future. More friends are welcome to leave comments below.

(1) Do not use {$_GET.id} or {$Think.get.id} directly in the template, because {$_GET.id} {$Think.get.id} does not have any Filtering, prone to XSS. It is recommended to use the I method, that is: {:I('get.id')}

(2) What should I do if I need to get the fields of a table in the database in thinkphp? An example is as follows:

$user=M('user');
$fields=$user->getDbFields();

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The result will be returned as a one-dimensional array consisting of table fields.

(3) During the data modification process, if we only need to modify the value of a certain field, we can use the setField method instead of calling the save method every time, for example:

$user=M('user');
$user->where('id=2')->setField('username','www.phpernote.com');

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(4) When comparison is involved, it is not necessary to use the if condition form. You can also write it in the following form:

<eq name="web" value="phpernote">value</eq> // name 变量的值等于 phpernote 就输出
<neq name="web" value="phpernote">value</neq> // name 变量的值不等于 phpernote 就输出
<gt name="age" value="5">value</gt> // name 变量的值大于 5 就输出
<egt name="age" value="5">value</egt> // name 变量的值大于等于 5 就输出
<lt name="age" value="5">value</lt> // name 变量的值小于 5 就输出
<elt name="age" value="5">value</elt> // name 变量的值小于等于 5 就输出

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(5) In the delete operation of thinkphp, you can use delete directly to perform deletion without using where, for example:

$User->delete('2,5');//删除主键为2和5的数据

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(6) Instructions on the usage of several quick operation functions of thinkphp.

C operation, operation (dynamic) configuration: mainly used in the Action method

Get:C('configuration parameters')

Settings: C('configuration parameters', new value)

A operation, quickly create Action objects:

$action=A('User'); Equivalent to $action=new UserAction();

D operation to quickly create model data objects:

$model=D('User'); Equivalent to $model=new UserModel();

S operation, quick operation cache method

Get: S('name')

Settings: S('name','value');

Delete: S('name',NULL);

F operation, a quick file data saving method, the usage method is the same as S operation.

(7) When naming the Model, it should be consistent with the table name in the database by default. For example, the name of the database corresponding to PhpernoteUserModel.class.php should be 'prefix_phpernote_user', and the call in the program code should be: D('PhpernoteUser');

(8) If caching is not required during the development process, the following definition can be made in the entry file:

define('NO_CACHE_RUNTIME',true);

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(9) If you need to know some additional information during the development process, you can define it in the configuration file. Here are some common information definition methods:

'SHOW_RUN_TIME'=>true,//运行时间显示
'SHOW_ADV_TIME'=>true,//显示详细的运行时间
'SHOW_DB_TIMES'=>true,//显示数据库的操作次数
'SHOW_CACHE_TIMES'=>true,//显示缓存操作次数
'SHOW_USE_MEM'=>true,//显示内存开销

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(10) Customize the Model class and use it when instantiating the model (the model is the database operation class), for example:

a. Create an IndexModel.class.php in the Model directory under the Lib directory in the project directory, and then write a method play in it. The content of this method is to output 1 to 10 in a loop.

b. Then in the method in Action, you can also write:

$index=M('index','IndexModel');//这里可以加上自定义的模型类一起实例化
$index->play();

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Then 1 to 10 will be output.

(11) If you need to change the default template suffix when using thinkphp, you can define it as follows in the configuration file:

'TMPL_TEMPLATE_SUFFIX' => '.dwt'//这里就将模板后缀名改为了dwt

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