Imagick::appendImages

(PECL imagick 2, PECL imagick 3)

Imagick::appendImages — Append a set of images

说明

public Imagick::appendImages ( bool $stack ) : Imagick

Append a set of images into one larger image.

参数

stack: Whether to stack the images vertically. By default (or if false is specified) images are stacked left-to-right. If stack is true, images are stacked top-to-bottom.

返回值

Returns Imagick instance on success.

错误／异常

错误时抛出 ImagickException。

范例

Example #1 Imagick::appendImages() example


<?php

/* Create new imagick object */
$im = new Imagick();

/* create red, green and blue images */
$im->newImage(100, 50, "red");
$im->newImage(100, 50, "green");
$im->newImage(100, 50, "blue");

/* Append the images into one */
$im->resetIterator();
$combined = $im->appendImages(true);

/* Output the image */
$combined->setImageFormat("png");
header("Content-Type: image/png");
echo $combined;
?>

以上例程的输出类似于：

Output of example : Imagick::appendImages()

User Contributed Notes

adao at adao dot eti dot br 30-Sep-2014 12:59


# change $ima to $ima->getimagesblob()



<?php

$im1 = new Imagick();  

$im1->readImage('multi-page-pdf.pdf');

$im1->resetIterator();

# Combine multiple images into one, stacked vertically.

$ima = $im1->appendImages(true);

$ima->setImageFormat("png");

header("Content-Type: image/png");

echo $ima->getimagesblob();

?>

Anonymous 14-Mar-2014 05:08


Sometimes when running this code on a long running apache24 instance on a server with minimal memory the final "echo $ima;" returns an empty string.



Doing an "apache graceful" seems to clear this up.  There appears to be no other way to correct OR DETECT this problem. Suckky.

Brandon 12-Nov-2009 12:56


# How to combine a multi-page pdf file into a single long image:





<?php


$im1 = new Imagick();   


$im1->readImage('multi-page-pdf.pdf');


$im1->resetIterator();


# Combine multiple images into one, stacked vertically. 


$ima = $im1->appendImages(true);


$ima->setImageFormat("png");


header("Content-Type: image/png");


echo $ima;


?>