PHP gd library implements server-side image cropping and thumbnail preview functions

This time I will bring you the php gd library to implement the server-side picturecropping and thumbnailpreview function, and the php gd library to implement the server-side image cropping and thumbnail preview functionNotesWhat are the actual cases? Let’s take a look at them.

Example, cropping images in PHP mainly uses the imagecopyresampled method of the gd library.
Example of cropping a picture:

The final cropped picture:

The dotted line box is the picture to be cropped, and it is finally saved as 100 wide picture.

Copy after login

In fact, if the coordinates are (0,0) and the width and height of the cropping area are consistent with the width and height of the source image, then it is the function of generating thumbnails.
Summary
Only examples of php cropping images are listed here, which are server-side functions.
If the client needs it, we recommend a jquery plug-in imageAreaSelect, which has very good compatibility.

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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