php图片转换成ASCII码
php图片转换成ASCII码，转换后可以直接通过字符串显示图片
<html> <head> <title>Ascii</title> <style> body{ line-height:0; font-size:1px; } </style> </head> <body> <?php $image = 'image.jpg'; // Supports http if allow_url_fopen is enabled $image = file_get_contents($image); $img = imagecreatefromstring($image); $width = imagesx($img); $height = imagesy($img); for($h=0;$h<$height;$h++){ for($w=0;$w<=$width;$w++){ $rgb = imagecolorat($img, $w, $h); $a = ($rgb >> 24) & 0xFF; $r = ($rgb >> 16) & 0xFF; $g = ($rgb >> 8) & 0xFF; $b = $rgb & 0xFF; $a = abs(($a / 127) - 1); if($w == $width){ echo '<br>'; }else{ echo '<span style="color:rgba('.$r.','.$g.','.$b.','.$a.');">#</span>'; } } } ?> </body> </html>