I get multiples php errors in server log , the error show on 2 lines of my php code, However php script is working but it show these errors in server log.
PHP Notice: Trying to access array offset on value of type null
PHP Notice: Undefined offset: 79
PHP Notice: Undefined offset: 89
PHP Notice: Undefined offset: 32
Here i added the partial piece of my php code where error is showing:
function right2img($color,$text,$pos,$font,$fontxy,$im){
$letters = imagecreatefromstring(base64_decode($font));
$rgb = getRGB($color);
$index = imagecolorexact($letters, 0, 0, 0);
imagecolorset ($letters, $index, $rgb[0], $rgb[1], $rgb[2]);
for($i=0;$i<strlen($text);$i++){
$c = ord($text[$i]);
imagecopy ($im, $letters, $pos, 5, $fontxy[$c]["x"], $fontxy[$c]["y"], $fontxy[$c]["w"], 5);
$pos+= $fontxy[$c]["w"];
}
return $im;
}
The errors are came from these 2 lines of above code
imagecopy ($im, $letters, $pos, 5, $fontxy[$c]["x"], $fontxy[$c]["y"], $fontxy[$c]["w"], 5);
$pos+= $fontxy[$c]["w"];
Can't figure how to fix it. ....any help ?
The $fontxy might be null.
You have to check the valid index value for $fontxy.
if(isset($fontxy[$c]) && isset($fontxy[$c]["x"]) && isset($fontxy[$c]["y"])&& isset($fontxy[$c]["w"])){
imagecopy ($im, $letters, $pos, 5, $fontxy[$c]["x"], $fontxy[$c]["y"], $fontxy[$c]["w"], 5);
$pos+= $fontxy[$c]["w"];
}