imagesx() 函數用于獲取圖像的寬度，單位爲像素，返回值爲整型。

語法：

<span class="kwd">int</span><span class="pln"> imagesx</span><span class="pun">(</span><span class="pln"> resource image </span><span class="pun">)</span>

參數 image 爲如(rú) imagecreatetruecolor()、imagecreatefromjpeg() 等函數返回的圖像資源。

PHP 獲取圖像高度函數：imagesy()

imagesy() 函數用于獲取圖像的高度，語法及用法同 imagesx() 。

語法：

<span class="kwd">int</span><span class="pln"> imagesy</span><span class="pun">(</span><span class="pln"> resource image </span><span class="pun">)</span>

參數 image 爲如(rú) imagecreatetruecolor()、imagecreatefromjpeg() 等函數返回的圖像資源。

實例：

<span class="pun">&lt;?</span><span class="pln">php

$img </span><span class="pun">=</span><span class="pln"> imagecreatefrompng</span><span class="pun">(</span><span class="str">"runoob-logo.png"</span><span class="pun">);</span><span class="pln">

echo </span><span class="str">"圖像寬度："</span><span class="pun">,</span><span class="pln">imagesx</span><span class="pun">(</span><span class="pln"> $img </span><span class="pun">),</span><span class="str">"&lt;br /&gt;"</span><span class="pun">;</span><span class="pln">

echo </span><span class="str">"圖像高度："</span><span class="pun">,</span><span class="pln">imagesy</span><span class="pun">(</span><span class="pln"> $img </span><span class="pun">);</span>

<span class="pun">?&gt;</span>

浏覽器輸出：

<span class="pun">圖像寬度：</span><span class="lit">290</span>

<span class="pun">圖像高度：</span><span class="lit">69</span>

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