首页
学习
活动
专区
工具
TVP
发布
精选内容/技术社群/优惠产品,尽在小程序
立即前往

imagecreatefromstring

(PHP 4 >= 4.0.4, PHP 5, PHP 7)

imagecreatefromstring — Create a new image from the image stream in the string

Description

代码语言:javascript
复制
resource imagecreatefromstring ( string $image )

imagecreatefromstring() returns an image identifier representing the image obtained from the given image. These types will be automatically detected if your build of PHP supports them: JPEG, PNG, GIF, BMP, WBMP, and GD2.

Parameters

image

A string containing the image data.

Return Values

An image resource will be returned on success. FALSE is returned if the image type is unsupported, the data is not in a recognised format, or the image is corrupt and cannot be loaded.

Errors/Exceptions

imagecreatefromstring() raises an E_WARNING level error, if the data is not in a recognized format.

Examples

Example #1 imagecreatefromstring() example

代码语言:javascript
复制
<?php
$data = 'iVBORw0KGgoAAAANSUhEUgAAABwAAAASCAMAAAB/2U7WAAAABl'
       . 'BMVEUAAAD///+l2Z/dAAAASUlEQVR4XqWQUQoAIAxC2/0vXZDr'
       . 'EX4IJTRkb7lobNUStXsB0jIXIAMSsQnWlsV+wULF4Avk9fLq2r'
       . '8a5HSE35Q3eO2XP1A1wQkZSgETvDtKdQAAAABJRU5ErkJggg==';
$data = base64_decode($data);

$im = imagecreatefromstring($data);
if ($im !== false) {
    header('Content-Type: image/png');
    imagepng($im);
    imagedestroy($im);
}
else {
    echo 'An error occurred.';
}
?>

The above example will output something similar to:

See Also

  • imagecreatefromjpeg() - Create a new image from file or URL
  • imagecreatefrompng() - Create a new image from file or URL
  • imagecreatefromgif() - Create a new image from file or URL
  • imagecreatetruecolor() - Create a new true color image

← imagecreatefrompng

imagecreatefromwbmp →

代码语言:txt
复制
 © 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

扫码关注腾讯云开发者

领取腾讯云代金券