Hướng dẫn what is extract ($_ post in php? - Trích xuất ($ _ post trong php là gì?

Michael Newton ¶

17 năm trước

They say "If the result is not a valid variable name, it is not imported into the symbol table."

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>

I had forgotten the second AS modifier in the SQL query.  Because it couldn't extract a variable called INET_NTOA(baz) into the symbol table, it didn't do either of them.

(BTW I don't normally stack functions up like that!  Just to make a short example!)

mrkhoa99 tại gmail dot com ¶

4 năm trước

We can use extract () function for Template Engine:

#Template.phpclass Template
{
    protected
$viewVars;

    public function

renderPage($tpl)
    {
       
ob_start();
       
extract($this->viewVars, EXTR_SKIP);
        include
$tpl;
        return
ob_end_flush();
    }

    public function

assign($arr)
    {
        foreach (
$arr as $key => $value) {
           
$this->viewVars[$key] = $value;
        }
        return
$this;
    }
}
$template = new Template();
$template->assign(
   [
'pageHeader' => 'Page Header', 'content' => 'This is the content page']
);
$template->renderPage('tpl.php');#tpl.php<h2>$pageHeader; ?>

;?>

Output:

Page Header
This is the content page

Chắc chắn ¶

8 năm trước

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.0

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.1

Dmikam ¶

8 năm trước

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.3

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.4

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.5

Dmikam ¶

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.6

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.7

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.8

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.9

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
0

Dan O'Donnell ¶

15 năm trước

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
2

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
3

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
4

Fredlawl ¶

Chắc chắn ¶

8 năm trước

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
6

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
7

15 năm trước

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
9

I had forgotten the second AS modifier in the SQL query.  Because it couldn't extract a variable called INET_NTOA(baz) into the symbol table, it didn't do either of them.0

Fredlawl ¶

9 năm trước

I had forgotten the second AS modifier in the SQL query.  Because it couldn't extract a variable called INET_NTOA(baz) into the symbol table, it didn't do either of them.2

I had forgotten the second AS modifier in the SQL query.  Because it couldn't extract a variable called INET_NTOA(baz) into the symbol table, it didn't do either of them.3

I had forgotten the second AS modifier in the SQL query.  Because it couldn't extract a variable called INET_NTOA(baz) into the symbol table, it didn't do either of them.4

I had forgotten the second AS modifier in the SQL query.  Because it couldn't extract a variable called INET_NTOA(baz) into the symbol table, it didn't do either of them.5

I had forgotten the second AS modifier in the SQL query.  Because it couldn't extract a variable called INET_NTOA(baz) into the symbol table, it didn't do either of them.6

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
5

Dotslash.lu tại gmail.com ¶

I had forgotten the second AS modifier in the SQL query.  Because it couldn't extract a variable called INET_NTOA(baz) into the symbol table, it didn't do either of them.8

I had forgotten the second AS modifier in the SQL query.  Because it couldn't extract a variable called INET_NTOA(baz) into the symbol table, it didn't do either of them.9

(BTW I don't normally stack functions up like that!  Just to make a short example!)0

(BTW I don't normally stack functions up like that!  Just to make a short example!)1

Csaba tại alum dot mit dot edu ¶

9 năm trước

(BTW I don't normally stack functions up like that!  Just to make a short example!)3

(BTW I don't normally stack functions up like that!  Just to make a short example!)4

(BTW I don't normally stack functions up like that!  Just to make a short example!)5

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
5

9 năm trước

(BTW I don't normally stack functions up like that!  Just to make a short example!)7

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
5

17 năm trước

(BTW I don't normally stack functions up like that!  Just to make a short example!)8

Dotslash.lu tại gmail.com ¶

Csaba tại alum dot mit dot edu ¶

(BTW I don't normally stack functions up like that!  Just to make a short example!)9

16 năm trước

Dotslash.lu tại gmail.com ¶

0

1

2

3

4

5

6

7

8

9

Csaba tại alum dot mit dot edu ¶

9 năm trước

We can use extract () function for Template Engine:1

We can use extract () function for Template Engine:2

We can use extract () function for Template Engine:3

We can use extract () function for Template Engine:4

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
5

Dotslash.lu tại gmail.com ¶

We can use extract () function for Template Engine:5

We can use extract () function for Template Engine:6

We can use extract () function for Template Engine:7

Csaba tại alum dot mit dot edu ¶

4 năm trước

We can use extract () function for Template Engine:9

#Template.phpclass Template
{
    protected
$viewVars;
0

#Template.phpclass Template
{
    protected
$viewVars;
1

#Template.phpclass Template
{
    protected
$viewVars;
2

16 năm trước

Hayley Watson ¶

#Template.phpclass Template
{
    protected
$viewVars;
3

#Template.phpclass Template
{
    protected
$viewVars;
4

14 năm trước

ktwombley tại gmail dot com ¶

#Template.phpclass Template
{
    protected
$viewVars;
6

#Template.phpclass Template
{
    protected
$viewVars;
7

#Template.phpclass Template
{
    protected
$viewVars;
8

#Template.phpclass Template
{
    protected
$viewVars;
9

    public function 0

    public function 1

owk dot ch299_ph tại gadz dot org ¶

4 năm trước

    public function 2

    public function 3

    public function 4

Aaron Stone ¶

17 năm trước

Bob ¶

7 năm trước

Benjaminatwebbutvecklarnadotse ¶

    public function 6

Nicolas Zeh ¶

Dmikam ¶

    public function 7

Dan O'Donnell ¶

17 năm trước

    public function 8

    public function 9

renderPage($tpl)
    {
       
ob_start();
       
extract($this->viewVars, EXTR_SKIP);
        include
$tpl;
        return
ob_end_flush();
    }

    public function

assign($arr)
    {
        foreach (
$arr as $key => $value) {
           
$this->viewVars[$key] = $value;
        }
        return
$this;
    }
}
$template = new Template();
$template->assign(
   [
'pageHeader' => 'Page Header', 'content' => 'This is the content page']
);
$template->renderPage('tpl.php');#tpl.php<h2>$pageHeader; ?>

;?>

Output:

Page Header
This is the content page

0

renderPage($tpl)
    {
       
ob_start();
       
extract($this->viewVars, EXTR_SKIP);
        include
$tpl;
        return
ob_end_flush();
    }

    public function

assign($arr)
    {
        foreach (
$arr as $key => $value) {
           
$this->viewVars[$key] = $value;
        }
        return
$this;
    }
}
$template = new Template();
$template->assign(
   [
'pageHeader' => 'Page Header', 'content' => 'This is the content page']
);
$template->renderPage('tpl.php');#tpl.php<h2>$pageHeader; ?>

;?>

Output:

Page Header
This is the content page

1

renderPage($tpl)
    {
       
ob_start();
       
extract($this->viewVars, EXTR_SKIP);
        include
$tpl;
        return
ob_end_flush();
    }

    public function

assign($arr)
    {
        foreach (
$arr as $key => $value) {
           
$this->viewVars[$key] = $value;
        }
        return
$this;
    }
}
$template = new Template();
$template->assign(
   [
'pageHeader' => 'Page Header', 'content' => 'This is the content page']
);
$template->renderPage('tpl.php');#tpl.php<h2>$pageHeader; ?>

;?>

Output:

Page Header
This is the content page

2

renderPage($tpl)
    {
       
ob_start();
       
extract($this->viewVars, EXTR_SKIP);
        include
$tpl;
        return
ob_end_flush();
    }

    public function

assign($arr)
    {
        foreach (
$arr as $key => $value) {
           
$this->viewVars[$key] = $value;
        }
        return
$this;
    }
}
$template = new Template();
$template->assign(
   [
'pageHeader' => 'Page Header', 'content' => 'This is the content page']
);
$template->renderPage('tpl.php');#tpl.php<h2>$pageHeader; ?>

;?>

Output:

Page Header
This is the content page

3

renderPage($tpl)
    {
       
ob_start();
       
extract($this->viewVars, EXTR_SKIP);
        include
$tpl;
        return
ob_end_flush();
    }

    public function

assign($arr)
    {
        foreach (
$arr as $key => $value) {
           
$this->viewVars[$key] = $value;
        }
        return
$this;
    }
}
$template = new Template();
$template->assign(
   [
'pageHeader' => 'Page Header', 'content' => 'This is the content page']
);
$template->renderPage('tpl.php');#tpl.php<h2>$pageHeader; ?>

;?>

Output:

Page Header
This is the content page

4

renderPage($tpl)
    {
       
ob_start();
       
extract($this->viewVars, EXTR_SKIP);
        include
$tpl;
        return
ob_end_flush();
    }

    public function

assign($arr)
    {
        foreach (
$arr as $key => $value) {
           
$this->viewVars[$key] = $value;
        }
        return
$this;
    }
}
$template = new Template();
$template->assign(
   [
'pageHeader' => 'Page Header', 'content' => 'This is the content page']
);
$template->renderPage('tpl.php');#tpl.php<h2>$pageHeader; ?>

;?>

Output:

Page Header
This is the content page

5

15 năm trước

Fredlawl ¶

renderPage($tpl)
    {
       
ob_start();
       
extract($this->viewVars, EXTR_SKIP);
        include
$tpl;
        return
ob_end_flush();
    }

    public function

assign($arr)
    {
        foreach (
$arr as $key => $value) {
           
$this->viewVars[$key] = $value;
        }
        return
$this;
    }
}
$template = new Template();
$template->assign(
   [
'pageHeader' => 'Page Header', 'content' => 'This is the content page']
);
$template->renderPage('tpl.php');#tpl.php<h2>$pageHeader; ?>

;?>

Output:

Page Header
This is the content page

7

#Template.phpclass Template
{
    protected
$viewVars;
0

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.4

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.00

9 năm trước

17 năm trước

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.01

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.02

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.03

16 năm trước

Dotslash.lu tại gmail.com ¶

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.05

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.06

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.07

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.08

Csaba tại alum dot mit dot edu ¶

9 năm trước

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.10

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.11

Under 4.3.10 on Windows 2000, I was pulling some mySQL records, but needed to convert two fields into IP addresses:
extract(mysql_fetch_assoc(mysql_query('SELECT * FROM foo')));
extract(mysql_fetch_assoc(mysql_query('SELECT INET_NTOA(bar) AS bar, INET_NTOA(baz) FROM foo')));
?>
5

17 năm trước

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.13

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.14

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.15

Dotslash.lu tại gmail.com ¶

Benjaminatwebbutvecklarnadotse ¶

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.17

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.18

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.19

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.20

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.21

What they should say is that if _any_ of the results have invalid names, _none_ of the variables get extracted.22

Mục đích của chức năng Php Explode () () và Compact () là gì?

Hàm compact () là một hàm sẵn có trong PHP và nó được sử dụng để tạo một mảng bằng các biến.Hàm này đối diện với hàm chiết ().Nó tạo ra một mảng kết hợp có các khóa là tên biến và giá trị tương ứng của chúng là các giá trị mảng.to create an array using variables. This function is opposite of extract() function. It creates an associative array whose keys are variable names and their corresponding values are array values.

Bài đăng $ _ làm gì trong PHP?

PHP $ _POST là một biến siêu toàn cầu PHP được sử dụng để thu thập dữ liệu biểu mẫu sau khi gửi biểu mẫu HTML với Phương thức = "Post".$ _POST cũng được sử dụng rộng rãi để vượt qua các biến.collect form data after submitting an HTML form with method="post". $_POST is also widely used to pass variables.

Trích xuất nhiều giá trị trong PHP là gì?

Để sao chép tất cả các giá trị của một mảng thành các biến, hãy sử dụng cấu trúc danh sách (): danh sách ($ biến, ...) = $ mảng;Các giá trị của mảng được sao chép vào các biến được liệt kê theo thứ tự nội bộ của mảng., use the list( ) construct: list( $variable, ... ) = $ array ; The array's values are copied into the listed variables in the array's internal order.

$ _ Có đăng một mảng không?

Biến tích hợp PHP $ _POST cũng là một mảng và nó giữ dữ liệu mà chúng tôi cung cấp cùng với phương thức POST.$_POST is also an array and it holds the data that we provide along with the post method.