PHP Image manipulation: 3D graph, zoom, rotate, crop, add watermark (iii)

Source: http://www.ido321.com/887.html

5, PHP rotation of the image

   1:  <div>

   2:     

   3:     <img src="1.png" style= "border:1px solid red;" >

   4:  </div>

   5:  <?php

   6:  header ("Content-type","Text/html;charset=utf-8");

   7:

   8:/*

   9:* Picture is rotated along the y-axis, for example in PNG format

  :* @param string $filename The URL of the picture

One   :* *

  :function turn_y ($filename)

  :  {

*   /     * Create a picture resource * /

  :     $backy = imagecreatefrompng ($filename);

  16:

*   /     * Get size * /

  :     $widthy = Imagesx ($backy);

  :     $heighty = Imagesy ($backy);

  20:

*   /     * Create a new picture resource, save the flipped picture * /

  :     $newy = Imagecreatetruecolor ($widthy, $heighty);

  23:

+   /     * Flips along the y-axis, copying the original image from right to left by one pixel width to the new resource individually * /

  :for     

  :         imagecopy ($newy, $backy, $widthy-$i -1,0, $i, 0,1, $heighty);

  :     }

  28:

*   /     * Save the flipped picture * /

  :     imagepng ($newy,' test3.png ');

  31:

*   /     * FREE resources * /

  :     Imagedestroy ($backy);

  :     Imagedestroy ($newy);

  :  }

  36:

  Notoginseng:/*

*   :* Picture is rotated along the x-axis, for example in PNG format

In   :* @param the URL of a string $filename picture

Max   :* /

In   :function turn_x ($filename)

  :  {

*   /     * Create a picture resource * /

  :     $backx = imagecreatefrompng ($filename);

  45:

*   /     * Get size * /

A   :     $widthx = Imagesx ($backx);

  :     $heightx = Imagesy ($backx);

  49:

*   /     * Create a new picture resource, save the flipped picture * /

  Wuyi:     $newx = Imagecreatetruecolor ($widthx, $heightx);

  52:

       -*/* flips along the x-axis, copying the original image from top to bottom by one pixel width to the new resource individually * /

Si   :for     

  :         imagecopy ($newx, $backx, 0, $heightx-$i -1,0, $i, $WIDTHX, 1);

  :     }

  57:

*   /     * Save the flipped picture * /

  :     imagepng ($newx,' test4.png ');

  60:

A   :/     * Release resources * /

  :     Imagedestroy ($backx);

A   :     Imagedestroy ($newx);

  :  }

*   /* Call function * /

  :  turn_y (' 1.png ');

  :  turn_x (' 1.png ');

  :  ?>

  :  <div style="Float:left">

X   :     

  :     <img src="test3.png" style= "border:1px solid red;" >

  :  </div>

  :  <div style="Float:left">

  :     

  :     <img src="test4.png" style= "border:1px solid red;" >

  :  </div>

Effect

PHP Image manipulation: 3D graph, zoom, rotate, crop, add watermark (iii)