Summary: research on the form checkbox to transmit data to PHP

The form check box is the use of checkbox1 and checkbox inputtype = "checkbox" name = "ch" value = "2" 2. because I transmit the array generated in the php loop, therefore, the value must be set to a variable :? Phpfor ($ I = 0; $ i10; $ I ++ ){? Inputtype = "checkbox" n

The form check box is checkbox.

1. Use of checkbox

2. because I transmit the array generated in the php loop, the value must be set to a variable:

For ($ I = 0; $ I <10; $ I ){
?>



:
:

3. array is also used for receiving:

$ Ch = $ _ POST ['ch'];
$ T1 = $ _ POST ['T1'];
$ T2 = $ _ POST ['T2'];

Foreach ($ ch as $)
{
$ P_t1 = $ t1 [$ a];
$ P_t2 = $ t2 [$ a];
}
?>

　　I would like to sum up the following tips: the settings required when uploading large files in PHP

Needless to say, you have to find the PHP configuration file php. ini :)

Open php. ini, first find
;;;;;;;;;;;;;;;;
; File Uploads;
;;;;;;;;;;;;;;;;
Region, which has the following parameters that affect file upload:

File_uploads = on; indicates whether to enable the upload of files over HTTP. ON is enabled by default.

Upload_tmp_dir; upload the file to the server to store the temporary file. if it is not specified, the default temporary folder will be used.

Upload_max_filesize = 8 m; indicates the maximum file size that is allowed to be uploaded. The default value is 2 MB.

In
;;;;;;;;;;;;;;;;;
; Data Handling;
;;;;;;;;;;;;;;;;;
Region:

Post_max_size = 8 m; it refers to the maximum value received by the form POST to PHP, including all values in the form. The default value is 8 MB.

Generally, after the preceding four parameters are set, the file to be uploaded <= 8 m is not a title, and the network is normal.

However, if you want to upload a large file larger than 8 MB, you can only set the above four items. Unless your network has a high upload speed of 100 Mbit/S, you have to pay attention to the following parameters:

;;;;;;;;;;;;;;;;;;;
; Resource Limits;
;;;;;;;;;;;;;;;;;;;

Max_execution_time = 600; maximum time (in seconds) for running each PHP page. the default value is 30 seconds.

Max_input_time = 600; maximum time required for receiving data on each PHP page. the default value is 60 seconds.

Memory_limit = 8 m; maximum memory consumed by each PHP page. the default value is 8 M.

After modifying the preceding parameters, you can upload a large volume of files under the normal conditions agreed by the network.