imagesy

(PHP 4, PHP 5)

imagesy — 取得图像高度

说明

int imagesy ( resource $image )

imagesy() 返回 image 所代表的图像的高度。

Example #1 使用 imagesy()


<?php

// create a 300*200 image
$img = imagecreatetruecolor(300, 200);

echo imagesy($img); // 200

?>

参见 imagecreatetruecolor()，getimagesize() 和 imagesx()。

add a note User Contributed Notes imagesy

BSE_Icheb at hotmail dot com 20-Jun-2003 04:13


You should destroy the $img too...

So it would be :

$img = @imagecreatefromjpeg("http://www.mysite.com/my_image.jpg");



if ($img) {

 $img_height = imagesy($img);

 ImageDestroy($img);

}



echo "My height is " . $img_height;

boo at php dot net 13-Aug-2002 11:01


To use this function notice that 'image' parameter it's a RESOURCE and NOT an Image File Path !



Here comes an exemple:



$img = @imagecreatefromgif("http://www.mysite.com/my_imag.gif");



if ($img) $img_height = imagesy($img);



echo "My height is " . $img_height;

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