A PHP Error was encountered

Severity: Warning

Message: imagecreatefrompng(): gd-png: fatal libpng error: Read Error: truncated data

Filename: libraries/Image_lib.php

Line Number: 1474

Backtrace:

File: /home/vanhiep/domains/vanhiep.net/public_html/application/core/MY_Model.php
Line: 818
Function: resize

File: /home/vanhiep/domains/vanhiep.net/public_html/application/widgets/slide/view.php
Line: 9
Function: get_new_img_url

File: /home/vanhiep/domains/vanhiep.net/public_html/application/widgets/slide/controller.php
Line: 17
Function: view

File: /home/vanhiep/domains/vanhiep.net/public_html/application/core/MY_Loader.php
Line: 38
Function: call_user_func_array

File: /home/vanhiep/domains/vanhiep.net/public_html/application/core/MY_Controller.php
Line: 100
Function: widget

File: /home/vanhiep/domains/vanhiep.net/public_html/application/controllers/News.php
Line: 183
Function: LoadHeader

File: /home/vanhiep/domains/vanhiep.net/public_html/application/controllers/Home.php
Line: 100
Function: detail

File: /home/vanhiep/domains/vanhiep.net/public_html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: imagecreatefrompng(): gd-png error: setjmp returns error condition

Filename: libraries/Image_lib.php

Line Number: 1474

Backtrace:

File: /home/vanhiep/domains/vanhiep.net/public_html/application/core/MY_Model.php
Line: 818
Function: resize

File: /home/vanhiep/domains/vanhiep.net/public_html/application/widgets/slide/view.php
Line: 9
Function: get_new_img_url

File: /home/vanhiep/domains/vanhiep.net/public_html/application/widgets/slide/controller.php
Line: 17
Function: view

File: /home/vanhiep/domains/vanhiep.net/public_html/application/core/MY_Loader.php
Line: 38
Function: call_user_func_array

File: /home/vanhiep/domains/vanhiep.net/public_html/application/core/MY_Controller.php
Line: 100
Function: widget

File: /home/vanhiep/domains/vanhiep.net/public_html/application/controllers/News.php
Line: 183
Function: LoadHeader

File: /home/vanhiep/domains/vanhiep.net/public_html/application/controllers/Home.php
Line: 100
Function: detail

File: /home/vanhiep/domains/vanhiep.net/public_html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: imagecreatefrompng(): '/home/vanhiep/domains/vanhiep.net/public_html/upload/images/resize/originals/group-1-vanhiepnet-slider-1160x470.png' is not a valid PNG file

Filename: libraries/Image_lib.php

Line Number: 1474

Backtrace:

File: /home/vanhiep/domains/vanhiep.net/public_html/application/core/MY_Model.php
Line: 818
Function: resize

File: /home/vanhiep/domains/vanhiep.net/public_html/application/widgets/slide/view.php
Line: 9
Function: get_new_img_url

File: /home/vanhiep/domains/vanhiep.net/public_html/application/widgets/slide/controller.php
Line: 17
Function: view

File: /home/vanhiep/domains/vanhiep.net/public_html/application/core/MY_Loader.php
Line: 38
Function: call_user_func_array

File: /home/vanhiep/domains/vanhiep.net/public_html/application/core/MY_Controller.php
Line: 100
Function: widget

File: /home/vanhiep/domains/vanhiep.net/public_html/application/controllers/News.php
Line: 183
Function: LoadHeader

File: /home/vanhiep/domains/vanhiep.net/public_html/application/controllers/Home.php
Line: 100
Function: detail

File: /home/vanhiep/domains/vanhiep.net/public_html/index.php
Line: 316
Function: require_once

Sắp xếp mảng đa chiều lồng nhau, sắp xếp theo 1 trường trong mảng

Thứ hai, Ngày 21/03/2022 14:21

$param_dt = array();
            foreach ($result as $key => $row) {
                $param_dt[$key] = $row->created_at;
              }
              
            array_multisort($param_dt, SORT_DESC, $result); 
            $result = array_slice($result, $start, $limit);

Trong đó $result là 1 object có nhiều mảng con. Ta lặp từng mảng con đó và lấy trường cần sắp xếp gán vào 1 mảng mới, cuối cùng dùng hàm array_multisort để sắp xếp lại mảng result. Xem code ví dụ trên.

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