在网上找的一些代码拼凑而成的。但最后一步不显示的总不是自己的文本内容,代码如下:
<?php if(isset($_GET['str']) and $_GET['str']!=""){ $im = imagecreatefromjpeg('gd.jpg'); $font_size = 12; $fontname = '33.ttf'; $black = imagecolorallocate($im,0,0,0); $str = $_GET['str'] ; function chararray($str,$charset="gbk"){ $re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/"; $re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/"; $re['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/"; $re['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/"; preg_match_all($re[$charset], $str, $match); return $match; } /* 返回一个字符串在图片中所占的宽度 */ function charwidth($fontsize,$fontangle,$ttfpath,$char){ $box = @imagettfbbox($fontsize,$fontangle,$ttfpath,$char); $width = max($box[2], $box[4]) - min($box[0], $box[6]); return $width; } /* 这几个变量分别是 字体大小, 角度, 字体名称, 字符串, 预设宽度, 编码 */ function autowrap($fontsize,$fontangle,$ttfpath,$str,$width,$charset='gbk'){ $_string = ""; $_width = 0; $temp = chararray($str); //var_dump($temp); foreach ($temp[0] as $k=>$v){ $w = charwidth($fontsize,$fontangle,$ttfpath,$v); $_width += intval($w); if (($_width > $width) && ($v !== "")){ $_string .= "\n"; $_width = 0; } $_string .= $v; $w = 0; //echo $v; } $_string = mb_convert_encoding($_string, "html-entities","gbk" ); return $_string; } $str = autowrap(12,0,'33.ttf','返回一个字符的数组',250); imagettftext($im,$font_size,0,35,160,$black,$fontname,$str); header('Content-type: image/jpeg'); imagejpeg($im); imagedestroy($im) ; } ?>
要怎样把返回一个字符的数组这几个词换成str传递过来的参数呢?谢谢大神
回复讨论(解决方案)
能不能把你最后一句话 “要怎样把返回一个字符的数组这几个词换成str传递过来的参数呢?” 写一个例子贴出来,你上面的代码最后一步是指 这个?imagettftext($im,$font_size,0,35,160,$black,$fontname,$str);
能不能把你最后一句话 “要怎样把返回一个字符的数组这几个词换成str传递过来的参数呢?” 写一个例子贴出来,你上面的代码最后一步是指 这个?imagettftext($im,$font_size,0,35,160,$black,$fontname,$str);
我是想把“返回一个字符的数组”那段替换成自己传递过来的函数
就是实现文本自动换行的功能。。。因为是小白只能复制一段代码过来修改
自己把: $str = autowrap(12,0,'33.ttf','返回一个字符的数组',250); 这段改成 $str = autowrap(12,0,'33.ttf','$_GET['str']',250);
这样后直接不能接收,不知道是语法的问题还是哪的问题,去掉引号又变成了空的。。。不知道哪里出了问题,所以来求解
简单点就是:?str=你好吗你好吗你好吗你好吗你好吗你好吗你好吗 传递过来后在第七八个字之后自动换行水印在图片上
自己改了下,定义了个新函数已经搞定了,谢谢大家

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