Php adds image watermarks to uploaded images

Welcome to the Linux community forum and interact with 2 million technical staff to access $ wfilewimagesx ($ im); get the width of the picture $ wfilehimagesy ($ im ); get Image Height} set the Mixed Mode imagealphablending ($ im, true); read the watermark File $ im2imagecreatefrompng ($ waterimg );

Welcome to the Linux community forum and interact with 2 million technical staff> go to $ wfilew = imagesx ($ im); // get the image width $ wfileh = imagesy ($ im ); // obtain the Image Height} // set the Mixed Mode imagealphablending ($ im, true); // read the watermark File $ im2 = imagecreatefrompng ($ waterimg );/

Welcome to the Linux community forum and interact with 2 million technicians>

$ Wfilew = imagesx ($ im); // obtain the image width.

$ Wfileh = imagesy ($ im); // get the Image Height

}

// Set the Mixed Mode

Imagealphablending ($ im, true );

// Read the watermark File

$ Im2 = imagecreatefrompng ($ waterimg); // If the watermark image is jpg, you can change it to $ im2 = imagecreatefromjpeg ($ waterimg) // $ white = imagecolorallocate ($ im2, 255,255,255 );

// Imagecolortransparent ($ im2, $ white); // set the transparent color. Do not set the two sentences to $ waterw = imagesx ($ im2); // obtain the width of the watermark image.

$ Waterh = imagesy ($ im2); // obtain the watermark image height.

// Randomly Add the watermark to the image

$ Randval = rand (); // a random number is generated between 0-9.

If ($ randval = 0 | $ randval = 3 | $ randval = 2 | $ randval = 8 | $ randval = 7) {// more locations can be added here

$ Wimgx = 5; $ wimgy = 5; // put the upper left corner

} Else {

$ Wimgx = $ wfilew-5-$ waterw; $ wimgy = $ wfileh-5-$ waterh; // put the upper right corner

} // Copy the watermark to the target file

Imagecopy ($ im, $ im2, $ wimgx, $ wimgy, 0, 0, $ waterw, $ waterh );

// Output image

If (strstr ($ wFile ['type'], "jp") {// same as above

Imagejpeg ($ im, $ wFile ['tmp _ name']);

} Else {

Imagegif ($ im, $ wFile ['tmp _ name']);

}

Imagedestroy ($ im );

Imagedestroy ($ im2 );

Copy ($ wFile ['tmp _ name'], $ wFile ['name']); // upload

}

Else echo "the image does not match !! ";

}

?>

[1] [2]