php SQL之where语句生成器

2018-09-07 15:15

阅读:241

  复制代码 代码如下:
//生成where字符串
function get_where($arg = null) {
foreach ((array)$arg as $key => $val) {
if(is_int($key)) {
$where .= $val ;
}else {
if(is_string($val)) {
if($val === null) {
$where .= and $key is null ;
}else {
$where .= and $key = $val ;
}
}elseif(is_array($val)) {
foreach ($val as $v) {
if(is_string($v)) {
$in .= $in ? ,$v : $v;
}else {
$in .= $in ? ,$v : $v;
}
}
$where .= and $key in ($in);
}else {
$where .= and $key = $val ;
}
}
}
return $where;
}


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