PHP Imagick two ways to expand a composite image

Method One: Compositeimages

/** * Function: Compositing picture * @param string $output _url picture Save path * @param string $img _type picture Save type *       @param integral $line Display the number of pictures per line * @param array $logo _info each image to be synthesized (requires all dimensions unified) * @param array $img _list The absolute path of the image to be synthesized * * @return void */Public function Generate ($output _url, $img _type, $line _num,        $logo _info, $img _list=array ()) {//Calculate how many lines of the picture are $lines = Ceil (count ($img _list)/$line _num);        $BG _width = ($logo _info[' width ') + $logo _info[' line_width ']) * $line _num;        $BG _height = ($logo _info[' height ') + $logo _info[' line_height ']) * $lines;        Build Canvas $canvas = new Imagick ();        $canvas->newimage ($bg _width, $bg _height, ' White ');        $canvas->setimageformat ($img _type);        $i = $j = 0;            foreach ($img _list as $item) {$im = new Imagick ($item);            $x = $logo _info[' line_width ']*2 + $i * $logo _info[' width ']; $y = $logo _info[' line_height ']*2 + $j * $logo_info[' height '];            $canvas->compositeimage ($im, GetImage (), Imagick::composite_over, $x, $y);            $canvas-Compositeimage ($im, $im->getimagecompose (), $x, $y);                if (($i + 1)% $line _num = = = 0) {$i = 0;            $j + +;            } else {$i + +;            }//Unset ($IM);        $im-Destroy ();        } $canvas->writeimage ($output _url);    Destroyed Objects $canvas, destroy (); }

Method Two: Combineimages

/** * Function: Compositing picture * @param string $output _url picture Save path * @param string $img _type picture Save type *       @param integral $line Display the number of pictures per line * @param array $logo _info each image to be synthesized (requires all dimensions unified) * @param array $img _list The absolute path of the image to be synthesized * * @return void */Public function Generate ($output _url, $img _type, $line _num,        $logo _info, $img _list=array ()) {//Calculate how many lines of the picture are $lines = Ceil (count ($img _list)/$line _num);        $BG _width = ($logo _info[' width ') + $logo _info[' line_width ']) * $line _num;        $BG _height = ($logo _info[' height ') + $logo _info[' line_height ']) * $lines;        Build canvas $canvas = null;        $canvas = new Imagick ();        $canvas-NewImage ($bg _width, $bg _height, ' White ');        $i = $j = 0;            foreach ($img _list as $item) {$im = null;            $im = new Imagick ($item);            $canvas-Readimage ($item);            $canvas-AddImage ($im);      $im, Clear ();      $im-Destroy ();        }//$canvas-flattenimages ();         Combineimages, $canvas (Imagick::channel_all);        $canvas-Writeimage ($output _url);        Destroy Object $canvas Clear ();    $canvas-Destroy (); }

Personally think method two more efficient

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