PHP读取图片,读取到的字节比图片实际字节多了,仔细研读了PHP手册自认为代码没有关问题
PHP读取图片,读取到的字节比图片实际字节多了,仔细研读了PHP手册自认为代码没问题
我的Code如下:
<?php<br /> <br /> $filepath="c:\123.jpg";<br /> $filesize=filesize($filepath);<br /> $fs=fopen($filepath,"r");<br /> $readlen=1024;//每次读取多少字节<br /> $rlen=0;//共读取多少字节<br /> while(!feof($fs)){<br /> $data=fread($fs,$readlen);<br /> $rlen+=$readlen;<br /> }<br /> fclose($fs);<br /> echo '文件大小'.$filesize.'<br/>';<br /> echo '读取大小'.$rlen.'<br/>';<br />?>
PHP朋友们给看看,我电脑系统windows 7的,这应该与系统无关系.
------解决方案--------------------
这恰恰与系统有关!
window 的文件打开方式有文本方式和二进制方式的区别
文本方式下,会对每个 \n (不是 \r\n 组合)附加一个 \r,形成 \r\n
所以字节数就多出来了
你需要用二进制防止打开图片
$fs=fopen($filepath,"rb");
或者直接用 file_get_contents

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