05-12-2003
Merging Two File Horizontally
I am trying to merge two large file horizontally using paste command. Every thing is working fine except for time. Its taking lot of time.
Is there any effiecient way of doing the same thing or is there anyway by which I can improve its perfomance programatically?
Thanks,
Yeheya
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LEARN ABOUT PHP
imageflip
IMAGEFLIP(3) 1 IMAGEFLIP(3)
imageflip - Flips an image using a given mode
SYNOPSIS
bool imageflip (resource $image, int $mode)
DESCRIPTION
Flips the $image image using the given $mode.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
o $mode
- Flip mode, this can be one of the IMG_FLIP_* constants:
+--------------------+---------------------------------------------------+
| Constant | |
| | |
| | Meaning |
| | |
+--------------------+---------------------------------------------------+
| | |
|IMG_FLIP_HORIZONTAL | |
| | |
| | Flips the image horizontally. |
| | |
| | |
| IMG_FLIP_VERTICAL | |
| | |
| | Flips the image vertically. |
| | |
| | |
| IMG_FLIP_BOTH | |
| | |
| | Flips the image both horizontally and verti- |
| | cally. |
| | |
+--------------------+---------------------------------------------------+
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Flips an image vertically
This example uses the IMG_FLIP_VERTICAL constant.
<?php
// File
$filename = 'phplogo.png';
// Content type
header('Content-type: image/png');
// Load
$im = imagecreatefrompng($filename);
// Flip it vertically
imageflip($im, IMG_FLIP_VERTICAL);
// Output
imagejpeg($im);
imagedestroy($im);
?>
The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example: Vertically flipped image
Example #2
Flips the image horizontally
This example uses the IMG_FLIP_HORIZONTAL constant.
<?php
// File
$filename = 'phplogo.png';
// Content type
header('Content-type: image/png');
// Load
$im = imagecreatefrompng($filename);
// Flip it horizontally
imageflip($im, IMG_FLIP_HORIZONTAL);
// Output
imagejpeg($im);
imagedestroy($im);
?>
The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example: Horizontally flipped image
NOTES
Note
This function is only available if PHP is compiled with the bundled version of the GD library.
PHP Documentation Group IMAGEFLIP(3)