Home  >  Article  >  Backend Development  >  PHP implements the image function of adding watermarks and text based on Imagick

PHP implements the image function of adding watermarks and text based on Imagick

墨辰丷
墨辰丷Original
2018-06-07 17:43:223419browse

This article mainly introduces the function of adding watermarks and text to pictures in PHP based on Imagick. Friends who are interested can refer to it. I hope it will be helpful to everyone.

Imagick is used here to generate pictures

Solve the problem of garbled Chinese text in pictures and add supported fonts

public function getPic(){
  header('Content-Type: text/html; charset=utf-8');
  $text = '中粮屯河(sh600737)';//中粮屯河(sh600737)
  $watermark = '305988103123zczcxzas';
  $len = strlen($text);
  $width = 10.5*(($len-8)/3*2+8);
  $height = 26;
  $imagick = new Imagick();
  $color_transparent = new ImagickPixel('#ffffff'); //transparent 透明色
  $imagick->newImage($width, $height, $color_transparent, 'jpg');
  //$imagick->borderimage('#000000', 1, 1);
  $style['font_size'] = 12;
  $style['fill_color'] = '#000000';
  for($num= strlen($watermark); $num>=0; $num--){
   $this->add_text($imagick,substr($watermark, $num,1), 2+($num*8), 30, 1,$style);
   $this->add_text($imagick,substr($watermark, $num,1), 2+($num*8), 5, 1,$style);
  }
  //return;
  $style['font_size'] = 20;
  $style['fill_color'] = '#FF0000';
  $style['font'] = './msyh.ttf'; ///微软雅黑字体 解决中文乱码
  //$text=mb_convert_encoding($text,'UTF-8'); //iconv("GBK","UTF-8//IGNORE",$text);
  $this->add_text($imagick,$text, 2, 20, 0,$style);
  header ( 'Content-type: ' . strtolower ($imagick->getImageFormat ()) );
  echo $imagick->getImagesBlob ();
}
// 添加水印文字
public function add_text(& $imagick, $text, $x = 0, $y = 0, $angle = 0, $style = array()) {
  $draw = new ImagickDraw ();
  if (isset ( $style ['font'] ))
   $draw->setFont ( $style ['font'] );
  if (isset ( $style ['font_size'] ))
   $draw->setFontSize ( $style ['font_size'] );
  if (isset ( $style ['fill_color'] ))
   $draw->setFillColor ( $style ['fill_color'] );
  if (isset ( $style ['under_color'] ))
   $draw->setTextUnderColor ( $style ['under_color'] );
  if (isset ( $style ['font_family'] ))
   $draw->setfontfamily( $style ['font_family'] );
  if (isset ( $style ['font'] ))
   $draw->setfont($style ['font'] );
  $draw->settextencoding('UTF-8');
  if (strtolower ($imagick->getImageFormat ()) == 'gif') {
   foreach ( $imagick as $frame ) {
    $frame->annotateImage ( $draw, $x, $y, $angle, $text );
   }
  } else {
   $imagick->annotateImage ( $draw, $x, $y, $angle, $text );
  }
}

Summary: The above is this article The entire content, I hope it will be helpful to everyone's study.

Related recommendations:

php method to implement fpm open status statistics

PHP implements multiple serializations /Deserialization method

PHP object-oriented work unit example explanation

The above is the detailed content of PHP implements the image function of adding watermarks and text based on Imagick. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn