Course Introduction：Why does Tkinter image not show up if created in a function within a class?In Tkinter, creating an image within a function will not display the...
2024-12-25 comment 0 381
Course Introduction：PHP's GD library supports image processing operations without additional dependencies. 1. Resize: Use imagecreatefromjpeg() to load the picture, create a new size canvas, scale and save it through imagecopyresampled(); 2. Crop: After loading the original image, create a new target size canvas and copy the specified area; 3. Add a watermark: Use imagettftext() to add text or use imagecopy() to overlay the transparent PNG logo. The basic functions are simple and effective, and other libraries can be considered for complex needs.
2025-06-21 comment 0 1020
Course Introduction：The ::class Notation in PHP: A Comprehensive ExplanationThe ::class notation in PHP is a relatively recent addition to the language, introduced in...
2024-11-22 comment 0 461
Course Introduction：PHP: Accessing Child Class Methods from a Parent ClassOften, when working with inheritance in PHP, developers encounter the need to access functions from a child class within the parent class. This can be achieved through a powerful mechanism: abstra
2024-10-19 comment 0 378
Course Introduction：Retrieving Class Name from Static Calls in Extended PHP ClassesProblem:A PHP class hierarchy exists, with a base class Action and an extended...
2024-11-01 comment 0 1125
Course Elementary 21643
Course Introduction："File and Image Technology" mainly introduces the use of PHP to process files and upload images.
Course Advanced 15489
Course Introduction：This course will lead you to cleverly implement image watermark and thumbnail functions through the GD library in PHP. You can easily master the implementation ideas of the case. At the same time, the course also explains how to encapsulate this process into classes, which can further deepen your understanding of object-oriented understanding.
Course Advanced 7129
Course Introduction：This course will lead you to cleverly implement image watermark and thumbnail functions through the GD library in PHP. You can easily master the implementation ideas of the case. At the same time, the course also explains how to encapsulate this process into classes, which can further deepen your understanding of object-oriented understanding.
Course Elementary 17881
Course Introduction："PHP Fun Class" happily takes everyone to learn PHP, making learning programming less scary. Learning programming is not a scary thing. This class will make learning PHP quite simple and interesting! !
Course Elementary 36766
Course Introduction："PHP Fun Class" makes learning PHP like playing a game, developing, fighting monsters, and breaking through levels, making learning programming no longer a scary thing, but fun and simple! If you find it difficult to learn PHP, then this course is very suitable for you to learn!
PHP class attribute declaration?
<?php class Image{ private $path; public function __construct($path = './'){ &nb
2021-10-17 22:05:54 0 7 1036
There is a problem with the final call of php to implement image verification code?
2022-05-05 01:22:00 0 8 1263
In php, the class name::class, what does it mean?
I would like to ask: In the following PHP code, what does the class name::class mean? {code...}
2017-06-30 09:54:29 0 2 1003
2017-07-07 10:34:10 0 3 1560
Fix PHP image upload issue: replace previous image to upload new image in multiple posts
2023-09-14 11:27:48 0 1 584
