Re: [PHP] internally stored binary image
Ernest E Vogelsinger wrote:
> At 15:57 20.03.2003, [EMAIL PROTECTED] spoke out and said:
> [snip]
> >In order to distribute a single script I would like to store a small
> >image internally. Is this at all possible with PHP? How would I go about
> >it? Please feel free to rtfm me to the relevant sections.
> [snip]
>
> You could make some script to retrieve the hex values of the image byte by
> byte, then create a source file like
> $imgdata = '\xff\x19\x00\x12 etc...;
>
> Then when you're about to send the image simply transmit the correct
> header() and echo out the data.
>
> This little sample works just perfectly:
>
>
> // use one of your files here, of course...
> $file = 'images/dart.gif';
> $hf = fopen($file, 'r') or die("Can't open $file for reading");
> $bin = fread($hf, filesize($file));
> fclose($hf);
> $asc = '$img_data = "';
> for ($i = 0, $len = strlen($bin); $i < $len; ++$i) {
> if ($i && !($i % 16))
> $asc .= "\" .\n\t\"";
> $asc .= '\\x' . bin2hex(substr($bin, $i, 1));
> }
> $asc .= '";';
>
> // $asc now contains the hex-coded binary file.
> // Example (a real gif - try it)
> $img_data =
> "\x47\x49\x46\x38\x39\x61\x20\x00\x20\x00\xa2\xff\x00\x00\x00\x00" .
> "\xff\x00\x00\xff\xff\x00\x00\x00\xff\xc0\xc0\xc0\x00\x00\x00\x00" .
> "\x00\x00\x00\x00\x00\x21\xf9\x04\x01\x00\x00\x04\x00\x2c\x00\x00" .
> "\x00\x00\x20\x00\x20\x00\x40\x03\xae\x48\xba\xac\xf0\x10\x34\x36" .
> "\x06\x83\x21\x87\xc8\xa3\xd0\xd0\x82\x65\xe3\xd6\x81\x0f\x2a\x89" .
> "\x25\x79\x6a\xe6\x33\xb1\x29\x6c\xab\x80\xd0\x94\x11\x8c\x7d\x31" .
> "\x80\xca\x51\x0b\xde\x70\xc3\x19\xa1\xc3\x8c\x28\x67\xcd\xe8\xa2" .
> "\x52\xb9\xb4\x82\x57\x41\xc8\x2a\x74\x15\x6f\xda\xe2\x96\x27\x7e" .
> "\x0c\x04\x5a\xd5\x90\xfc\x6d\xf5\xbc\x34\x5f\xd4\x2d\x83\x5e\x8f" .
> "\xc1\xe7\x93\xa9\xef\x2f\xe7\x75\x53\x54\x76\x6f\x36\x1d\x0a\x02" .
> "\x55\x3b\x77\x78\x26\x5a\x84\x5d\x5e\x4d\x19\x1f\x4e\x71\x38\x91" .
> "\x5e\x69\x49\x7f\x91\x8c\x94\x31\x49\x6c\x72\x39\x40\x5e\x6b\x65" .
> "\x9e\x66\x03\xa9\xa8\xaa\x99\x1c\xa4\xa2\xad\x8d\xa1\x70\x44\xb0" .
> "\x85\x92\xb9\x2b\xb8\xbc\x93\x38\x90\xb5\x86\x5b\x7b\xb1\x37\x87" .
> "\x7e\x34\x73\xca\xcd\xce\x09\x00\x3b";
>
> // Now write the stuff to a file
> $hf = fopen("$file.asc", 'w') or die("Can't open $file.asc for writing");
> fwrite($hf, $asc);
> fclose($hf);
>
> // Here you may either include the file, or copy/paste its contents into
> your own code.
> // The next lines are just to test the stuff - adjust the Content-Type
> header to your needs:
>
> header('Content-Type: image/gif');
> eval($asc); // this will render the binary content into $img_data
> echo $img_data; // send it
> exit;// and voila
>
>
> Note that reading the file is only needed once as a "tool" to create the
> "ascii version" of the binary file.
>
> --
>>O Ernest E. Vogelsinger
>(\) ICQ #13394035
> ^ http://www.vogelsinger.at/
BullsEye indeed! After adjusting for win32 (added 'b' to fopen's) this script
is a little gem. You really saved me quite some headaches. Thanks!
-speedfreak
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Re: [PHP] internally stored binary image
At 15:57 20.03.2003, [EMAIL PROTECTED] spoke out and said:
[snip]
>In order to distribute a single script I would like to store a small
>image internally. Is this at all possible with PHP? How would I go about
>it? Please feel free to rtfm me to the relevant sections.
[snip]
You could make some script to retrieve the hex values of the image byte by
byte, then create a source file like
$imgdata = '\xff\x19\x00\x12 etc...;
Then when you're about to send the image simply transmit the correct
header() and echo out the data.
This little sample works just perfectly:
// use one of your files here, of course...
$file = 'images/dart.gif';
$hf = fopen($file, 'r') or die("Can't open $file for reading");
$bin = fread($hf, filesize($file));
fclose($hf);
$asc = '$img_data = "';
for ($i = 0, $len = strlen($bin); $i < $len; ++$i) {
if ($i && !($i % 16))
$asc .= "\" .\n\t\"";
$asc .= '\\x' . bin2hex(substr($bin, $i, 1));
}
$asc .= '";';
// $asc now contains the hex-coded binary file.
// Example (a real gif - try it)
$img_data =
"\x47\x49\x46\x38\x39\x61\x20\x00\x20\x00\xa2\xff\x00\x00\x00\x00" .
"\xff\x00\x00\xff\xff\x00\x00\x00\xff\xc0\xc0\xc0\x00\x00\x00\x00" .
"\x00\x00\x00\x00\x00\x21\xf9\x04\x01\x00\x00\x04\x00\x2c\x00\x00" .
"\x00\x00\x20\x00\x20\x00\x40\x03\xae\x48\xba\xac\xf0\x10\x34\x36" .
"\x06\x83\x21\x87\xc8\xa3\xd0\xd0\x82\x65\xe3\xd6\x81\x0f\x2a\x89" .
"\x25\x79\x6a\xe6\x33\xb1\x29\x6c\xab\x80\xd0\x94\x11\x8c\x7d\x31" .
"\x80\xca\x51\x0b\xde\x70\xc3\x19\xa1\xc3\x8c\x28\x67\xcd\xe8\xa2" .
"\x52\xb9\xb4\x82\x57\x41\xc8\x2a\x74\x15\x6f\xda\xe2\x96\x27\x7e" .
"\x0c\x04\x5a\xd5\x90\xfc\x6d\xf5\xbc\x34\x5f\xd4\x2d\x83\x5e\x8f" .
"\xc1\xe7\x93\xa9\xef\x2f\xe7\x75\x53\x54\x76\x6f\x36\x1d\x0a\x02" .
"\x55\x3b\x77\x78\x26\x5a\x84\x5d\x5e\x4d\x19\x1f\x4e\x71\x38\x91" .
"\x5e\x69\x49\x7f\x91\x8c\x94\x31\x49\x6c\x72\x39\x40\x5e\x6b\x65" .
"\x9e\x66\x03\xa9\xa8\xaa\x99\x1c\xa4\xa2\xad\x8d\xa1\x70\x44\xb0" .
"\x85\x92\xb9\x2b\xb8\xbc\x93\x38\x90\xb5\x86\x5b\x7b\xb1\x37\x87" .
"\x7e\x34\x73\xca\xcd\xce\x09\x00\x3b";
// Now write the stuff to a file
$hf = fopen("$file.asc", 'w') or die("Can't open $file.asc for writing");
fwrite($hf, $asc);
fclose($hf);
// Here you may either include the file, or copy/paste its contents into
your own code.
// The next lines are just to test the stuff - adjust the Content-Type
header to your needs:
header('Content-Type: image/gif');
eval($asc); // this will render the binary content into $img_data
echo $img_data; // send it
exit;// and voila
Note that reading the file is only needed once as a "tool" to create the
"ascii version" of the binary file.
--
>O Ernest E. Vogelsinger
(\) ICQ #13394035
^ http://www.vogelsinger.at/
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[PHP] internally stored binary image
In order to distribute a single script I would like to store a small image internally. Is this at all possible with PHP? How would I go about it? Please feel free to rtfm me to the relevant sections. Thx in advance, [EMAIL PROTECTED] PS: CC me please, as I'm on the digest... -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
