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How to use PHP prepared statements to safely update multi-image product information (including file upload and old image cleaning)
27 Dec 2025
This article explains in detail how to correctly implement the product editing function with 5 pictures, focusing on solving the problems of old pictures not being released, variable overwriting and logical misalignment when updating multiple pictures, ensuring that each picture can independently determine the upload status and replace it safely.
How to correctly use PHP preprocessing statements to update multi-image product information (including file upload and old image cleaning)
27 Dec 2025
This article explains in detail how to use MySQLi preprocessing statements to safely update product data containing 5 pictures. It focuses on solving common problems such as incorrect retention of old files when updating multiple pictures, unlink() call errors, and missing parameter bindings. It also provides robust conditional judgment logic and error protection measures.
How to correctly use PHP preprocessing statements to update multi-image product pages (including file upload and old image cleaning)
27 Dec 2025
This article explains in detail how to use PDO/MySQLi prepared statements to safely update product data containing 5 pictures, focusing on solving common problems such as incorrect retention of old pictures when updating multiple pictures, unlink() call errors, confusion in variable scopes, and misalignment of SQL binding parameters.
Tutorial on inserting pictures into specific cells in Excel using openpyxl
27 Nov 2025
This article details how to insert a picture into a specific cell of an Excel worksheet using Python's openpyxl library. The tutorial covers the key steps of loading an image, anchoring it to a specific cell, and automatically adjusting the row height and column width of the cell based on the image size. Through these methods, you can achieve the effect of the picture being perfectly visually adapted and "embedded" into the specified cell, instead of just being a floating object.
How to open the Google Chrome video window_Google Chrome picture-in-picture setting tutorial
16 Mar 2026
There are five ways to enable video picture-in-picture in Chrome: 1. Right-click the video and select "Picture-in-Picture"; 2. Click the Picture-in-Picture button in the media control icon in the address bar; 3. Press Ctrl Shift P (Win/Linux) or Cmd Shift P (macOS) after focusing on the video; 4. Execute the requestPictureInPicture() command in the developer tool Console; 5. Enable the AutoPicture-in-Picture experimental function in chrome://flags.
How to open the small video window in Edge browser_Edge browser picture-in-picture setting tutorial
18 Mar 2026
There are five ways to enable the Picture-in-Picture function in the Edge browser: 1. Right-click the video and select "Play in Picture-in-Picture"; 2. Press Ctrl Shift P after focusing on the video; 3. Enable the Picture-in-Picture experimental function in edge://flags and restart; 4. Add the website whitelist in edge://settings/content/pictureInPicture; 5. Execute the requestPictureInPicture() command through the developer tool Console to force the call.
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