php JPG转成ASCII的php代码
将一张JPG图像转换成ASCII码。```php
<html>
<head>
<title>Ascii</title>
<style>
body{
line-height:1px;
font-size:1px;
}
</style>
</head>
<body>
<?php
function getext($filename) {
$pos = strrpos($filename,'.');
$str = substr($filename, $pos);
return $str;
}
$image = 'image.jpg';
$ext = getext($image);
if($ext == ".jpg"){
$img = ImageCreateFromJpeg($image);
}
else{
echo'Wrong File Type';
}
$width = imagesx($img);
$height = imagesy($img);
for($h=0;$h<$height;$h++){
for($w=0;$w<=$width;$w++){
$rgb = ImageColorAt($img, $w, $h);
$r = ($rgb >> 16) & 0xFF;
$g = ($rgb >> 8) & 0xFF;
$b = $rgb & 0xFF;
if($w == $width){
echo '<br>';
}else{
echo '<span style="color:rgb('.$r.','.$g.','.$b.');">#</span>';
}
}
}
?>
</body>
</html>
```
