Detailed introduction and usage of extract function

Definition and usage The PHP extract() function imports variables from an array into the current symbol table. For each element in the array, the key is used for the variable name and the key value is used for the variable value. The second parameter type is used to specify how the extract() function treats such conflicts when a variable already exists and there is an element with the same name in the array. This function returns the number of successfully set variables. Syntax extract(array,extract_rules,prefix) Parameter Description array Required. Specifies the input to use. extract_rules Optional. The extract() function will check whether each key name is a legal variable name, and also checks whether it conflicts with the variable name in the symbol table. The handling of illegal, numeric, and conflicting key names will be determined based on this parameter. Can be one of the following values: Possible values: EXTR_OVERWRITE - Default. If there is a conflict, existing variables are overwritten. EXTR_SKIP - If there is a conflict, do not overwrite it

1. 10 recommended articles about extract()

Introduction: Definition and Usage The PHP extract() function imports variables from an array into the current symbol table. For each element in the array, the key is used for the variable name and the key value is used for the variable value. The second parameter type is used to specify how the extract() function treats such conflicts when a variable already exists and there is an element with the same name in the array. This function returns the number of successfully set variables. Syntax extract(array,extract_rules,prefix) Parameter description array    ...

2. Recommended 10 articles about extract()

Introduction: Definition and Usage The PHP extract() function imports variables from an array into the current symbol table. For each element in the array, the key is used for the variable name and the key value is used for the variable value. The second parameter type is used to specify how the extract() function treats such conflicts when a variable already exists and there is an element with the same name in the array. This function returns the number of successfully set variables. Syntax extract(array,extract_rules,prefix) Parameter description array    ...

3. extract() 10 recommended content

Introduction: Definition and Usage The PHP extract() function imports variables from an array into the current symbol table. For each element in the array, the key is used for the variable name and the key value is used for the variable value. The second parameter type is used to specify how the extract() function treats such conflicts when a variable already exists and there is an element with the same name in the array. This function returns the number of successfully set variables. Syntax extract(array,extract_rules,prefix) Parameter description array    ...

4. MySQL-date and time Extract function code example detailed introduction

Introduction: The advantage of the MySQL date and time Extract function is that it can select various parts of the date and time, from year to microseconds , allowing us to process MySQL date and time more easily. MySQL datetime Extract (select) function. 1. Select each part of the date and time: date, time, year, quarter, month, day, hour, minute, second, microsecond set @dt = '2008-09-10 07:15:30.123456'; select date(@ dt); --

5. php array processing function extract detailed explanation and example code

Introduction: The php extract function uses the array key name as the variable name and the array key value as the variable value. This function can handle form submission and insert into the database. This article explains to you the basic usage and examples of the extract function. Friends who need it can refer to

6. php array processing function extract detailed explanation and example code

简介：php extract 函数使用数组键名作为变量名，使用数组键值作为变量值， 本函数可以处理表单提交并插入数据库。文章向大家讲解extract函数的基本使用方法及实例,需要的朋友可以参考下

7. php 数组处理函数extract详解及实例代码_php实例

简介：php extract 函数使用数组键名作为变量名，使用数组键值作为变量值， 本函数可以处理表单提交并插入数据库。文章向大家讲解extract函数的基本使用方法及实例,需要的朋友可以参考下

8. php中的函数extract的使用

简介：我们经常会碰到，将数组中的abc索引值提取出来付给$abc变量，例如$abc = $_POST['abc']， 这样就需要操作这样的一步。如果$_POST中有好几个索引都要提取出来付给相应变量，那就要一个一个写，很麻烦的。如果用上extract就好了，只需 extract($_POST),然后在下面直接用变量$abc就行了，里面的其它变量也这么使用。 实例： <?php $_d['a'] =  ...

9. PHP extract() 函数

简介：定义和用法  PHP extract() 函数从数组中把变量导入到当前的符号表中。  对于数组中的每个元素，键名用于变量名，键值用于变量值。  第二个参数 type 用于指定当某个变量已经存在，而数组中又有同名元素时，extract() 函数如何对待这样的冲突。  本函数返回成功设置的变量数目。  语法  extract(array,extract_rules,prefix)  参数  描 ...

10. PHP extract() 函数

简介：定义和用法  PHP extract() 函数从数组中把变量导入到当前的符号表中。  对于数组中的每个元素，键名用于变量名，键值用于变量值。  第二个参数 type  ...

11. PHP中extract函数的妙用 bilberryextract vanilla extract regexp extract

简介：extract:PHP中extract函数的妙用：PHP 的extract()函数，它的主要作用是将数组展开，键名作为变量名，元素值为变量值，可以说为数组的操作提供了另外一个方便的工具，比方说，可以很方便的提取POST或者_GET的元素，对表单提交上来的内容不能不用一一赋值

12. extractdata PHP extract 将数组拆分成多个变量的函数

简介：extractdata:extractdata PHP extract 将数组拆分成多个变量的函数：extract()函数语法： int extract( array $var_array [, int $extract_type = EXTR_OVERWRITE [, string $prefix ]] ) 功能： extract()函数提取关联数组(对数字索引数组无效)每对key和value，生成以key为变量名、value为对应值的多组新变量。 复制代码 代码如下:

13. able2extract PHP中的extract的作用分析

Introduction: able2extract:able2extract Analysis of the role of extract in PHP: addslashes - Use backslashes to quote strings extract(addslashes($_POST)); - Process POST forms Put the client

Get the variable name in the form. extract(addslashes($_GET)); --Process the GET form Put the client

14. PHP extract( ) Function usage example

Introduction: PHP extract() function usage example

15. PHP extract() function (Array Splitting) Definition and Usage

Introduction: PHP extract() function (Array Splitting) Definition and Usage

16. PHP extract() function usage php array splitting

Introduction: PHP extract() function usage php array splitting

17. PHP extract splits the array into multiple variables

Introduction: PHP extract splits the array into multiple variables

18. Analysis of the role of extract in PHP_PHP tutorial

##Introduction: Analysis of the role of extract in PHP. addslashes--Use backslashes to quote the string extract(addslashes($_POST));--Process the POST form. Take out the variable names in the client FORMMETHOD="POST"... form. extract(addslashes($_GET)

##19.

PHP extract function to split an array into multiple variables_PHP tutorial

Introduction: PHP extract is a function that splits an array into multiple variables. extract() function syntax: int extract( array $var_array [, int $extract_type = EXTR_OVERWRITE [, string $prefix ]] ) Function: extract( ) function to extract associative arrays (no numeric index arrays

##20.

Analysis of the wonderful use of extract() function in PHP_PHP tutorial

Introduction: Analysis of the wonderful use of the extract() function in PHP. Recently, when I was looking at the code of an awesome person, I saw a very useful function: extract(). Its main function is to expand the array and key names. As a variable name, the element value is the variable value, which can be said

21.

Definition and usage of extract() function in PHP_PHP tutorial

Introduction: Definition and usage of extract() function in PHP. Definition and usage PHP extract() function imports variables from an array into the current symbol table, key. The name is used for the variable name, and the key value is used for the variable value.

22.

php extract() function converts the variables in the data into php variables_PHP tutorial

Introduction: The php extract() function converts variables in the data into php variables. The PHP extract() function imports variables from the array into the current symbol table. For each element in the array, the key name is used for the variable name, and the key value is used for the variable value. The second parameter type is used to refer to

##23. A brief analysis of PHP functions extract() application skills_PHP tutorial

Introduction: A brief analysis of the PHP function extract() application skills, for example, you can easily extract the elements of $_POST or $_GET. , you cannot assign values ​​to the contents submitted by the form one by one, and directly use the following code: form.html form action = action

24. The wonderful use of the extract() function in PHP _PHP Tutorial

Introduction: The wonderful use of extract() function in PHP. Recently, when I was looking at the code of an awesome person, I saw a very useful function: extract(). , its main function is to expand the array, the key name is used as the variable name, and the element value is the variable value, it can be said

25. mutual conversion of php variables and arrays (extract and compact)_PHP tutorial

Introduction: mutual conversion of php variables and arrays ( extract and compact). In PHP, we can use the extract or compact function to convert arrays and variables. Let me share two examples with you using these two functions. compact multiple variables to array

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