How to pass values between php html JavaScript MySQL code

1. PHP

A. PHP-> HTML & JavaScript

The amount is too simple. I want to write = ~

Html code

<Input type = "" readonly = "readonly" style = 'background-color: # DCDCDC 'value = <? Php echo $ perinfo [ID];?> />
JavaScript code
Copy codeThe Code is as follows:
<Script type = "text/javascript">
Var ability = <? Php echo JSON ($ array);?>;
</Script>

B. PHP <-> MySQL

Php code
Copy codeThe Code is as follows:
<? Php
$ Dbcnx = @ mysql_connect ("localhost", "root", "1234 ");
If (! $ Dbcnx ){
Echo ("Unable to connect to the". "database server at this time .");
Exit ();
}

If (! @ Mysql_select_db ("pms ")){
Echo ("Unable to locate the joke". "database at this time .");
Exit ();
}
Mysql_query ("set names 'gb2312 '");


$ Q = mysql_query ("select * from ability where ALV = 1 ");
While ($ row = mysql_fetch_array ($ q )){
$ Array1 [] = $ row [AName];
}
?>

2. HTML

A. HTML-> PHP (POST Mode)

Html code
Copy codeThe Code is as follows:
<Form id = "form" name = "form" method = "POST" action = "do. php">
<Input type = "hidden" id = "count" name = "count" value = "1"/>
<Input type = "submit" name = "Submit" value = "Search"/>
</Form>

Do. php file code
Copy codeThe Code is as follows:
<? Php
Echo $ _ POST ['Count'];
?>

B. HTML-> JavaScript


JavaScript code (available, changeable)
Copy codeThe Code is as follows:
<Script type = "text/javascript">
Var te = document. getElementById ("count ");
Te. value = 1;
</Script>

3. JavaScript

A. JavaScript-> HTML (common method, not verified)

JavaScript code
Copy codeThe Code is as follows:
<Script type = "text/javascript">
Function f (){
Var id = "2 ";
Var a = document. getElementById ("");
A. href. replace ("(n)", id );
}
</Script>


Html code
Copy codeThe Code is as follows:
<A id = "a" href = "ExportArticle. action? Articles = (n) "/>

B. JavaScript-> PHP

Transfer through html

1. JavaScript code first give html
Copy codeThe Code is as follows:
<Script type = "text/javascript">
Var I = 1;
Var te = document. getElementById ("count ");
Te. value = I;
</Script>

2.html code to php
Copy codeThe Code is as follows:
<Form id = "form" name = "form" method = "POST" action = "do. php">
<Input type = "hidden" id = "count" name = "count" value = "1"/>
<Input type = "submit" name = "Submit" value = "Search"/>
</Form>

3. do. php received
Copy codeThe Code is as follows:
<? Php
Echo $ _ POST ['Count'];
?>