imagemagick - php生成图片如何根据字符计算图片宽度
生成的文本内容是可变的,所以在根据文本生成图片的时候如何准确的计算出生成图片的宽度?
回复内容:
生成的文本内容是可变的,所以在根据文本生成图片的时候如何准确的计算出生成图片的宽度?
GD库提供一个imagettfbbox函数可以让你计算TTF字体的尺寸
http://php.net/manual/zh/function.imagettfbbox.php
以前做过类似的事,采用的是死办法,手动计算文字的宽带。采用等宽的字体,如果有中文需要注意一个中文的宽带是两个英文的,虽说不是十分完美,但还是满足当时的需求了。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



In this chapter, we will understand the Environment Variables, General Configuration, Database Configuration and Email Configuration in CakePHP.

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

To work with date and time in cakephp4, we are going to make use of the available FrozenTime class.

Working with database in CakePHP is very easy. We will understand the CRUD (Create, Read, Update, Delete) operations in this chapter.

To work on file upload we are going to use the form helper. Here, is an example for file upload.

In this chapter, we are going to learn the following topics related to routing ?

CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu

Validator can be created by adding the following two lines in the controller.
