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PHP - Manual: imagebmp - 互联网笔记

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PHP官方手册 - 互联网笔记

PHP - Manual: imagebmp

2025-05-18

imagebmp

(PHP 7 >= 7.2.0, PHP 8)

imagebmpOutput a BMP image to browser or file

说明

imagebmp(GdImage $image, resource|string|null $file = null, bool $compressed = true): bool

Outputs or saves a BMP version of the given image.

参数

image

由图象创建函数(例如imagecreatetruecolor())返回的 GdImage 对象。

file

文件保存的路径或者已打开的流资源(此方法返回后自动关闭该流资源),如果未设置或为 null,将会直接输出原始图象流。

注意:

null is invalid if the compressed arguments is not used.

compressed

Whether the BMP should be compressed with run-length encoding (RLE), or not.

返回值

成功时返回 true, 或者在失败时返回 false

警告

如果 libgd 输出图像失败,函数会返回 true

更新日志

版本 说明
8.0.0 image 现在需要 GdImage 实例;之前需要有效的 gd resource
8.0.0 The type of compressed is bool now; formerly it was int.

示例

示例 #1 Saving a BMP file

<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);

imagestring($im, 1, 5, 5, 'BMP with PHP', $text_color);

// Save the image
imagebmp($im, 'php.bmp');
?>
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官方地址:https://www.php.net/manual/en/function.imagebmp.php

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