search

$keywordk = "key";  // 关键字
$sql = sprintf("select id from table where content like '%%%s%%'", $keywork)
$retult = $sql 结果

1.如果content里包含关键字,就会把对应id查出来
因为content 是保存编辑器内容,如果里面有 PHP 搜索功能  类似这样的也会被查出来
(搜索显示页不显示图片, 如果关键字是标签内的不搜出,这个要怎么解决?)

2.查询出关键字所在段落前后约70个字符时遇到的问题
  因为是编辑器我用了去标签

         $list[$k]['content'] = strip_tags($list[$k]['content']);         $pos = strpos($list[$k]['content'], $keywords);         $list[$k]['content'] = substr($list[$k]['content'], $pos-70<0 ? 0 : $pos, $pos+70);

查出的内容有换行和乱码


回复讨论(解决方案)

保存编辑器编辑的内容,有换行很正常嘛。
分割字符串,utf-8一个中文三个字符,如果一个中文被从中间分割,就乱码了

utf占三到四个字符。。。所以要用换种的切割方式

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