顯示一個黑色背景中間白框
求大神指導下！~
源碼：
<?php
require_once?'string.func.php';
$width?=?80;
$height?=?28;
//創建畫布
$image?=?imagecreatetruecolor($width,$height);
$white?=?imagecolorallocate($image,255,255,255);
$black?=?imagecolorallocate($image,0,0,0);
//用填充矩形填充畫布
imagefilledrectangle($image,1,1,$width-2,$height-2,$white);
$type=1;
$length?=4;
$chars?=?buildRandomString($type,$length);
$sess_name?=?"verify";
$_SESSION[$sess_name]?=?$chars;
$fontfiles?=?array("SIMYOU.TTF","STSONG.TTF","msyh.ttc","msyhbd.ttc","msyhl.ttc","simsun.ttc");
for?($i?=?0;?$i<$length;$i++){
????$size?=?mt_rand(14,18);
????$angle?=?mt_rand(-15,15);
????$x?=?5+$i*$size;
????$y?=?mt_rand(20,26);
????$fontfiles="../fonts".$fontfiles[mt_rand(0,count($fontfiles)-1)];
????$color?=?imagecolorallocate($image,mt_rand(50,90),mt_rand(80,200),mt_rand(90,180));
????$text?=?substr($chars,$i,1);
????imagettftext($image,$size,$angle,$x,$y,$color,$fontfiles,$text);
}
header("content-type:image/gif");
imagegif($image);
imagedestroy($image);<?php
function?buildRandomString($type=1,$length=4){
????if?($type?==?1)?{
????????$chars?=?join?(?"",?range?(?0,?9?)?);
????}?elseif?($type?==?2)?{
????????$chars?=?join?(?"",?array_merge?(?range?(?"a",?"z"?),?range?(?"A",?"Z"?)?)?);
????}?elseif?($type?==?3)?{
????????$chars?=?join?(?"",?array_merge?(?range?(?"a",?"z"?),?range?(?"A",?"Z"?),?range?(?0,?9?)?)?);
????}
????if?($length?>?strlen?(?$chars?))?{
????????exit?(?"字符串長度不夠"?);
????}
????$chars?=?str_shuffle?(?$chars?);
????return?substr?(?$chars,?0,?$length?);
}
2019-03-27
2018-12-04
你在最后調用的時候verifyImage(4,50,2);把參數傳進去就好了，我的也有過類似問題，希望可以幫到你
2018-08-14
emmm……把路徑改成絕對路徑就可以了，不過不知道相對路徑為什么會出問題
2018-08-14
同樣得到問題，樓主解決了嗎
2018-08-04
2018-08-04
我也出現過這種情況? 我就把header(); imagepng(); imagedestroy();這三句先注釋掉，再運行就會報哪兒錯了
2018-08-02
這個也是驗證碼的制作代碼，你可以用我的參考一下 <?php session_start(); function?verifyImage($length,$pixel,?$line){ ????$image?=?imagecreatetruecolor(100,30); ????$bgcolor?=?imagecolorallocate($image,255,255,255);//#FFFFFFFFFFFF ????imagefill($image,0,0,$bgcolor); ????$captch_name=""; ????if($length){ ????for?($i=0;$i<$length;$i++){ ????????$fontsize?=?6; ????????$fontcolor?=?imagecolorallocate($image,rand(0,120),rand(0,120),rand(0,120)); ????????$data='abcdefghijkmnpqrstuvwxy3456789'; ????????$fontcontent=substr($data,rand(0,strlen($data)),1); ????????$captch_name.="$fontcontent"; ????????$x?=?($i?*?100/4)+rand(5,10); ????????$y?=?rand(5,10); ????????imagestring($image,$fontsize,$x,$y,$fontcontent,$fontcolor); ????} ????} ????$_SESSION['name']=$captch_name; ????if($pixel){??//隨機點 ????????for($i=0;$i<$pixel;$i++){ ????????????$pointcolor?=?imagecolorallocate($image,rand(50,200),rand(50,200),rand(50,200)); ????????????imagesetpixel($image,rand(1,99),rand(1,29),$pointcolor); ????????} ????} ????if($line){??//隨機線 ????????for($i=0;$i<$line;$i++){ ????????????$linecolor?=?imagecolorallocate($image,rand(60,220),rand(60,220),rand(60,220)); ????????????imageline($image,rand(1,99),rand(1,29),rand(1,99),rand(1,29),$linecolor); ????????} ????} ????header('content-type:?image/png'); ????imagepng($image); //銷毀 ????imagedestroy($image); } verifyImage(4,50,2); ??>