我想知道是否有一种方法可以通过关键字匹配来过滤结果,只有最多可以显示2个关键字才能显示结果?
很快......我想通过使用关键字($ row ['TAG'])来做“你可能感兴趣”...所有关键字相似的唯一条件或最多2个字的差异。 TIA。
$words_tag=apple, 11128gb, mjvm2ll, air, macbook, 16ghz, i5250u,
notebook, laptop, mac, **- 10 keyword**
V $ words_tag(2)= apple,air,macbook,16ghz,i5250u,notebook, 笔记本电脑,mac, -8/10关键字
V $ words_tag(3)= mjvm2ll,air,macbook,16ghz,i5250u,notebook,laptop,mac, -8/10关键字
X $ words_tag(4)= mjvm2ll,air,16ghz,i5250u,笔记本电脑,笔记本电脑,mac, -7/10关键字
我的代码:
$words_tag=$row['TAG'];
$arr = substr_count($words_tag, ",");
//$words_tag=apple, 11128gb, mjvm2ll, air, macbook, 16ghz, i5250u, notebook, laptop, mac,
$search = $words_tag;
$search = strtoupper($search);
$search = strip_tags($search);
$search = trim($search);
$words = explode(',', $search);
$words_condition = array();
$arguments = array();
$i='1';
foreach ($words as $word) {
$words_condition[] = 'TAG LIKE ?';
$arguments[] = '%'.$word.'%';
$i++;
if($i=> $arr-2) break();
}
$query = $db->prepare("SELECT * FROM `post` WHERE ".implode(" OR ", $words_condition)." ORDER BY ID DESC");
$query->execute($arguments);
if($query->rowCount()=='0'){
}else{
echo 'YOU MAY BE INTSETENTING...';
}
答案 0 :(得分:2)
使用OR
而不是LIKE
组合+
条件。如果匹配,则条件为1
;如果不匹配,则条件为0
,因此总数将是匹配的关键字数。然后,您可以将其与匹配关键字数量的限制进行比较。
$query = $db->prepare("SELECT * FROM `post`
WHERE ".implode(" + ", $words_condition)." BETWEEN 1 AND 2
ORDER BY ID DESC");