PHP obtains the values in the input box and compares them with the database. The input box

PHP obtains the values in the input box and compares them with the database. The input box

Front end:

<! -- Item query --> <input type = "text" name = "bianhao" value = "" maxlength = "10" size = "10" style = "width: 100px; margin: 0px 0px 0px 25px; height: 20px; "/> <input type =" submit "value =" item number query "style =" margin: 0px 0px 0px 10px; cursor: pointer; background-color: # C30D23; border: 0px; color: # FFFFFF; width: 85px; border-radius: 5px; padding: 3px 0; font-size: 13px; "/>

The php background receives and queries:

Public function MallList () {// write method $ goods = M ('shop _ goods_info '); // instantiate the table corresponding to the database $ codes = I ('Param. bianhao '); // obtain the front-end text box data if (isset ($ codes) & $ codes! = '') {$ Where ['code'] = $ codes; $ this-> assign ('Codes ', $ codes ); // display }}$ info = $ classify-> where (array ('code' => $ code)-> find (); // query syntax

2. Or:

$ _ GET or $ _ POST

<Form action = ''method = 'post'> text box: <input type = 'text' name = 'text'> <input type = 'submit 'value = 'Submit ', name = 'sub'> </form> <? Phpif (! Empty ($ _ POST ['sub']) {echo $ _ POST ['text'];}?>

Replace GET with GET.

The above section describes how to use PHP to obtain the value in the input box and compare it with the database. I hope it will be helpful to you. If you have any questions, please leave a message for me, the editor will reply to you in a timely manner. Thank you very much for your support for the help House website!