web手势库AlloyFinger运用案例：代言海报

<?php function rndStr(){ $string = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $len = rand(0,3)+5; $rst = ''; $strl = strlen($string); for($i=0;$i<$len;$i++){ $ind = rand(0, $strl); $s = $string[$ind]; $rst .= $s; } return $rst; } $name = time() . rndStr(); $type = $_POST['datatype']; if($type == 'img'){ $img = str_replace(' ', '+', $_POST['dataimg']); $img = base64_decode($img); $f = fopen('upfile/' . $name . '.jpg', 'w+'); fwrite($f, $img); fclose($f); echo 'upfile/' . $name . '.jpg'; }else if($type == 'qrcode'){ $pic = $_POST['dataimg']; //$arr = getimagesize($pic); //$pic = "data:{$arr['mime']};base64," . base64_encode(file_get_contents($pic)); $pic = "data:image/jpg;base64," . base64_encode(file_get_contents($pic)); echo $pic; } ?>