How to automatically wrap text and images in imagettfbbox and imagettftext in PHP-PHP Tutorial-php.cn

How to automatically wrap text and images in imagettfbbox and imagettftext in PHP

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Release： 2023-04-02 14:10:01

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This article mainly introduces the method of automatic line wrapping of text and pictures in imagettfbbox and imagettftext in PHP. It has a certain reference value. Now I share it with you. Friends in need can refer to it.

mb_internal_encoding("UTF-8"); // 设置编码
   // 这几个变量分别是 字体大小, 角度, 字体名称, 字符串, 预设宽度
   $content = "";
// 将字符串拆分成一个个单字 保存到数组 letter 中
   for ($i=0;$i<mb_strlen($text3);$i++) {
       $letter[] = mb_substr($text3, $i, 1);
   }
foreach ($letter as $l) {
       $teststr = $content." ".$l;
       $fontBox = imagettfbbox($fontSize, 0, $font, $teststr);
//        $testbox = imagettfbbox($fontsize, $angle, $fontface, $teststr);
       // 判断拼接后的字符串是否超过预设的宽度
       if (($fontBox[2] > $width) && ($content !== "")) {
           $content .= "\n";
       }
       $content .= $l;
   }

//    $fontBox = imagettfbbox($fontSize, 0, $font, $text3);
   imagettftext ( $target, $fontSize, 0, ceil(($width - $fontBox[2]) / 2), 400, $fontColor_black, $font, $content );

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