Yii uses intervention and image extension to realize image processing function

1: Install intervention/image extensions

composer require intervention/image

2: Upload a file

\Intervention\Image\ImageManagerStatic::make($_FILES['file']['tmp_name'])->save('upload.jpg');//file Object for uploading a form name Name 
\Intervention\Image\ImageManagerStatic::make($_FILES['file']['tmp_name'])->resize(300, 200)->save('upload.jpg');//file Object for uploading a form name Name , And compress the uploaded picture into 300,200

Simultaneously realize single graph uploading and multi-graph uploading

if ($_FILES['file']) {
  $image = $_FILES['file']['tmp_name'];
  if (is_array($image)) {
    // Multi-graph upload 
    foreach ($image as $key => $item) {
      \Intervention\Image\ImageManagerStatic::make($item)->save($key.'upload.jpg');
    }
  } else {
    // Single graph upload 
    \Intervention\Image\ImageManagerStatic::make($image)->save('upload.jpg');
  }
}

3: Add Watermark

1: Add text watermark

Adding text watermark mainly uses text method

text Method Parameter Description

x (Optional)

x defines the base point of the first character. Default: 0

y (Optional)

y defines the base point of the first character. Default: 0

callback (Optional)

Close the callback of the font object, which can be configured:

(1) file: Configure the watermark font
(2) size: Configure Watermark Size
(3) color: Configure Watermark Color
(4) align: Configuring Watermark Horizontal Alignment
(5) valign: Configuration is vertically aligned
(6) angle: Configuring Watermark Rotation Angle
Example:

// Watermark 
ImageManagerStatic::make('upload.jpg')->text(' Watermark text ',20,30,function($font){
  // Configure watermark fonts 
  $font->file(\Yii::getAlias('@webroot') . '/simsun.ttc');
  // Configure Watermark Size 
  $font->size(30);
  // Configure Watermark Color 
  $font->color('#fff');
  // Configure the watermark level to the left ( left, right and center)
  $font->align('left');
  // Configure the watermark to live vertically (top, bottom and middle)
  $font->valign('bottom');
  // Configure the watermark rotation angle 
  $font->angle(45);
})->save('uploadWater.jpg');

2: Add image watermark

Adding image watermark mainly uses insert method

insert method parameter description:

source: Watermark Image Address

position: Set the location of the image to be inserted, and the parameter configurable items are:

(1)top-left (default)
(2)top
(3)top-right
(4)left
(5)center
(6)right
(7)bottom-left
(8)bottom
(9)bottom-right

x: Horizontal offset, default 0

y: Vertical offset, default 0

Example:

ImageManagerStatic::make('upload.jpg')->insert('water.jpg','bottom-left',10,10)->save('uploadWater.jpg');

Here are some basic operations of intervention/image expansion. For details, please refer to: http://image.intervention.io/

Summarize

The above is the site to introduce you Yii using intervention/image expansion to achieve image processing functions, I hope to help you, if you have any questions welcome to leave me a message, this site will reply to you in time!