PHP, Captcha Pictures, garbled
Can not find out where the error, but the preview is a lot of garbled
Ob_clean ();
Header ("Content-type:image/png");
[Email protected] (50,20) or Die ("FJHB");
$BG _color=imagecolorallocate ($img, 255,255,255);
Imagefill ($img, 0,0, $BG _color);
$border _color=imagecolorallocate ($img, 200,200,200);
Imagerectangle ($img, 0,0,49,19, $border _color);
for ($i =2; $i <18; $i + +) {
$line _color=imagecolorallocate ($img, Rand (200,255), Rand (200,255), Rand (200,255));
Imageline ($img, 2, $i, $i, $line _color);
}
$font _size=12;
$str [0]= "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$str [1]= "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$str [2]= "01234567891234567890123456";
$imgstr [0]["s"]= $str [rand (0,2)][rand (0,25)];
$IMGSTR [0]["x"]=rand (2,5);
$imgstr [0]["Y"]=rand (1,4);
$imgstr [1]["s"]= $str [rand (0,2)][rand (0,25)];
$IMGSTR [1]["x"]= $imgstr [0]["x"]+ $font _size-1+rand (0,1);
$imgstr [1]["Y"]=rand (1,3);
$imgstr [2]["s"]= $str [rand (0,2)][rand (0,25)];
$IMGSTR [2]["x"]= $imgstr [1]["x"]+ $font _size-1+rand (0,1);
$imgstr [2]["Y"]=rand (1,4);
$imgstr [3]["s"]= $str [rand (0,2)][rand (0,25)];
$IMGSTR [3]["x"]= $imgstr [2]["x"]+ $font _size-1+rand (0,1);
$imgstr [3]["Y"]=rand (1,3);
for ($i =0; $i <4; $i + +) {
$text _color=imagecolorallocate ($img, Rand (50,180), Rand (50,180), Rand (50,180));
Imagechar ($img, $font _size, $imgstr [$i] ["X"], $imgstr [$i] ["Y"], $imgstr [$i] ["s"], $text _color);
}
Imagepng ($IMG);
Imagedestroy ($IMG);
?>
PHP Image Verification Code
------Solution--------------------
Garbled is the browser display characters instead of pictures?
Close the browser and re-visit this address to try again. If not, it should be the header problem.
Picture output, preferably with the UTF-8 character set, because it is possible to encounter the output of Chinese.
And UTF-8 words, must pay attention to BOM head.
------Solution--------------------
I have a normal test here.
Check to see if the BOM header is removed.
GD Library and other environment is complete
The main feeling is still the header problem, the header before the other output?
------Solution--------------------
Whether the LZ preview is garbled as follows:
This problem occurs because the file is encoded as:
Then you need to change it into
OK, preview the effect:
