php 批量给图片加水印代码_PHP教程

php 批量给图片加水印代码 我们经常会碰到要对大量的图片进行一次性增加水印，这就会碰到批量增加图片水印功能了，我们为你提供一款php批量增加水印的功能。

php教程 批量给图片加水印代码
我们经常会碰到要对大量的图片进行一次性增加水印，这就会碰到批量增加图片水印功能了，我们为你提供一款php批量增加水印的功能。

//config.php
//=================================用户配置区=================================

$per=1; //每次处理的图片数目
$dir1='img'; //输入目录
$dir2='img2'; //输出目录 输出图片会保存于$dir2/$dir1目录下面
$mark_img='www.bKjia.c0m.gif'; //水印图片
$mark_text=''; //水印文字内容 【不支持中文】
$mark_text_size=25; //水印文字大小
$mark_pos=5; //水印位置,0为随机,1为顶端居左,2为顶端居中,3为顶端居右,4为中部居左,5为中部居中,6为中部居右,7为底端居左,8为底端居中,9为底端居右；

//=================================用户配置区【结束】=================================

//mark.php加水印文件
function go( $url, $t = 0 )
{
exit( ( "" );
}

function imagewatermark( $product_img, $waterpos = 0, $waterimage = "", $watertext = "", $textfont = 25, $textcolor = "#ff0000", $newdir = "marked" )
{
echo "正在处理图片：".$product_img."
";
$iswaterimage = false;
$formatmsg = "暂不支持该文件格式，请用图片处理软件将图片转换为gif、jpg、png格式。";
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( "需要加水印的图片不存在！" );
}
if ( $iswaterimage )
{
$w = $water_w;
$h = $water_h;
$label = "图片的";
}
else
{
$temp = @imagettfbbox( @ceil( $textfont * 2.5 ), 0, "arial.ttf", $watertext );
$w = $temp[2] - $temp[6];
$h = $temp[3] - $temp[7];
unset( $temp );
$label = "文字区域";
}
if ( $ground_w {
echo "需要加水印的图片的长度或宽度比水印".$label."还小，无法生成水印！";
}
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 {
}
else
{
if ( ( $id - 1 ) * $per {
imagewatermark( $dir1."/".$file, $mark_pos, $mark_img, $mark_text, $mark_text_size, "#ff0000", $dir2 );
}
if ( $id * $per {
closedir( $dir );
go( "mark.php?id=".( $id + 1 ) );
}
}
}
}

echo "

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