imagetypes

(PHP 4 >= 4.0.2, PHP 5, PHP 7, PHP 8)

imagetypes — 返回当前 PHP 版本所支持的图像类型

说明

imagetypes ( ) : int

本函数以比特字段方式返回与当前 PHP 版本关联的 GD 库所支持的图像格式。将返回以下结果，IMG_GIF | IMG_JPG | IMG_PNG | IMG_WBMP| IMG_XPM。例如要检查是否支持 PNG，这样做：

Example #1 imagetypes() 例子


<?php
if (imagetypes() & IMG_PNG) {
    echo "PNG Support is enabled";
}
?>

User Contributed Notes

ThunderCrew 30-Jul-2007 07:38


Im not a smart man but this seemd to be the simplest code and it worked.

Its at the very top of this directory.



<?php

var_dump(gd_info());

?> 



Returned image info and more.



array(11) { ["GD Version"]=> string(27) "bundled (2.0.28 compatible)" ["FreeType Support"]=> bool(true) ["FreeType Linkage"]=> string(13) "with freetype" ["T1Lib Support"]=> bool(false) ["GIF Read Support"]=> bool(true) ["GIF Create Support"]=> bool(true) ["JPG Support"]=> bool(true) ["PNG Support"]=> bool(true) ["WBMP Support"]=> bool(true) ["XBM Support"]=> bool(true) ["JIS-mapped Japanese Font Support"]=> bool(false) }