Add watermark code to images in batches_PHP tutorial

php batch watermark code for images We often encounter the need to add watermarks to a large number of pictures at one time, which leads to the function of batch adding watermarks to pictures. We provide you with a function of adding watermarks in batches in PHP.

php tutorial to add watermark code to images in batches
We often encounter the need to add watermarks to a large number of pictures at one time. This will lead to the function of batch adding watermarks to pictures. We provide you with a function of adding watermarks in batches in PHP.

//config.php
//==================================User configuration area============ =====================

$per=1; //The number of images processed each time
$dir1='img'; //Input directory
$dir2='img2'; //Output directory The output image will be saved under the $dir2/$dir1 directory
$mark_img='www.bKjia.c0m.gif'; //Watermark image
$mark_text=''; //Watermark text content [Does not support Chinese]
$mark_text_size=25; //Watermark text size
$mark_pos=5; //Watermark position, 0 is random, 1 is top left, 2 is top center, 3 is top right, 4 is middle left, 5 is middle center, 6 is middle right, 7 is bottom On the left, 8 means the bottom is in the center, 9 means the bottom is on the right;

//================================== User configuration area [End] ====== ===========================

//mark.php watermark file
function go( $url, $t = 0 )
{
exit( ( "" );
}

function imagewatermark( $product_img, $waterpos = 0, $waterimage = "", $watertext = "", $textfont = 25, $textcolor = "#ff0000", $newdir = "marked" )
{
echo "Processing pictures:".$product_img."
";
$iswaterimage = false;
$formatmsg = "This file format is not supported yet. Please use image processing software to convert the image to gif, jpg, or png format.";
If ( !empty( $waterimage ) && file_exists( $waterimage ) )
{
         $iswaterimage = true;
          $water_info = getimagesize( $waterimage );
          $water_w = $water_info[0];
          $water_h = $water_info[1];
          switch ( $water_info[2] )
           {
case 1 :
               $water_im = imagecreatefromgif( $waterimage );
             break;
case 2 :
               $water_im = imagecreatefromjpeg( $waterimage );
             break;
case 3 :
               $water_im = imagecreatefrompng( $waterimage );
             break;
             default:
                  echo $formatmsg;
             return;
}
}
If ( !empty( $product_img ) && file_exists( $product_img ) )
{
$ground_info = getimagesize( $product_img );
         $ground_w = $ground_info[0];
         $ground_h = $ground_info[1];
          switch ( $ground_info[2] )
           {
case 1 :
               $ground_im = imagecreatefromgif( $product_img );
             break;
case 2 :
               $ground_im = imagecreatefromjpeg( $product_img );
             break;
case 3 :
                $ground_im = imagecreatefrompng( $product_img );
             break;
             default:
                  echo $formatmsg;
             return;
}
}
else
{
exit( "The picture that needs to be watermarked does not exist!" );
}
If ( $iswaterimage )
{
          $w = $water_w;
          $h = $water_h;
          $label = "Picture";
}
else
{
$temp = @imagettfbbox( @ceil( $textfont * 2.5 ), 0, "arial.ttf", $watertext );
          $w = $temp[2] - $temp[6];
          $h = $temp[3] - $temp[7];
          unset( $temp );
          $label = "Text area";
}
If ( $ground_w < $w || $ground_h < $h )
{
echo "The length or width of the image that needs to be watermarked is smaller than the watermark ".$label.", so the watermark cannot be generated!";
}
else
{
switch ($waterpos)
           {
case 0 :
                $posx = rand( 0, $ground_w - $w );
                $posy = rand( 0, $ground_h - $h );
             break;
case 1 :
               $posx = 0;
               $posy = 0;
             break;
case 2 :
               $posx = ( $ground_w - $w ) / 2;
               $posy = 0;
             break;
case 3 :
               $posx = $ground_w - $w;
               $posy = 0;
             break;
case 4:
               $posx = 0;
               $posy = ( $ground_h - $h ) / 2;
             break;
case 5 :
$posx = ( $ground_w - $w ) / 2;
               $posy = ( $ground_h - $h ) / 2;
             break;
case 6 :
               $posx = $ground_w - $w;
               $posy = ( $ground_h - $h ) / 2;
             break;
case 7 :
               $posx = 0;
               $posy = $ground_h - $h;
             break;
case 8 :
$posx = ( $ground_w - $w ) / 2;
               $posy = $ground_h - $h;
             break;
case 9 :
               $posx = $ground_w - $w;
               $posy = $ground_h - $h;
             break;
             default:
                $posx = rand( 0, $ground_w - $w );
                $posy = rand( 0, $ground_h - $h );
             break;
}
Imagealphablending( $ground_im, true );
imagecopyresampled($ground_im, $water_im,0,0, $posx, $posy, 0, 0, $water_w, $water_h);
           if ( $iswaterimage )
           {
 
imagecopymerge( $ground_im, $water_im, $posx, $posy, 0, 0, $water_w, $water_h,35 );
}
        else
           {
If ( !empty( $textcolor ) && strlen( $textcolor ) == 7 )
                 {
                $r = hexdec( substr( $textcolor, 1, 2 ) );
                $g = hexdec( substr( $textcolor, 3, 2 ) );
                $b = hexdec( substr( $textcolor, 5 ) );
            }
            else
            {
                exit( "水印文字颜色格式不正确！" );
            }
            imagestring( $ground_im, $textfont, $posx, $posy, $watertext, imagecolorallocate( $ground_im, $r, $g, $b ) ,35);
        }
        switch ( $ground_info[2] )
        {
        case 1 :
            imagegif( $ground_im, $newdir."/".$product_img );
            break;
        case 2 :
            imagejpeg( $ground_im, $newdir."/".$product_img );
            break;
        case 3 :
            imagepng( $ground_im, $newdir."/".$product_img );
            break;
        default :
            echo $errormsg;
        }
        if ( isset( $water_info ) )
        {
            unset( $water_info );
        }
        if ( isset( $water_im ) )
        {
            imagedestroy( $water_im );
        }
        unset( $ground_info );
        imagedestroy( $ground_im );
        unset( $water_im );
        unset( $ground_im );
    }
}

set_time_limit( 0 );
include( "config.php" );
if ( $_get[id] )
{
    $id = $_get[id];
}
else
{
    $id = 1;
}
if ( !is_dir( $dir2."/".$dir1 ) )
{
    mkdir( $dir2."/".$dir1, 511 );
}
$ti = 0;
$dir = opendir( $dir1 );
while ( $file = readdir( $dir ) )
{
    if ( $file == "." || $file == ".." )
    {
    }
    else
    {
        ++$ti;
        if ( $ti < ( $id - 1 ) * $per )
        {
        }
        else
        {
            if ( ( $id - 1 ) * $per <= $ti && $ti < $id * $per )
            {
                imagewatermark( $dir1."/".$file, $mark_pos, $mark_img, $mark_text, $mark_text_size, "#ff0000", $dir2 );
            }
            if ( $id * $per <= $ti )
            {
                closedir( $dir );
                go( "mark.php?id=".( $id + 1 ) );
            }
        }
    }
}

echo "