php中实现用数组妩媚地生成要执行的sql语句_php实例
会不会碰到这样一种情况呢?每次获取数据将数据和历史版本都有一定的差别,然而用ThinkPHP的addAll()函数,却会将已有的数据删掉再重新写入。这明显不是我们想要的。但自己写sql每次几十个字段也是醉了。如何优雅而又轻松地实现sql的自动生成呢?于是有了下面这个方法。
/** * [array_to_sql 根据数组key和value拼接成需要的sql] * @param [type] $array [key, value结构数组] * @param string $type [sql类型insert,update] * @param array $exclude [排除的字段] * @return [string] [返回拼接好的sql] */ function array_to_sql($array, $type='insert', $exclude = array()){ $sql = ''; if(count($array) > 0){ foreach ($exclude as $exkey) { unset($array[$exkey]);//剔除不要的key } if('insert' == $type){ $keys = array_keys($array); $values = array_values($array); $col = implode("`, `", $keys); $val = implode("', '", $values); $sql = "(`$col`) values('$val')"; }else if('update' == $type){ $tempsql = ''; $temparr = array(); foreach ($array as $key => $value) { $tempsql = "'$key' = '$value'"; $temparr[] = $tempsql; } $sql = implode(",", $temparr); } } return $sql; }
当然,这个方法还有很多可以斟酌的地方。能用,但不是最好的。园子的猿猿们你们有更好的方法吗?请告诉我吧!

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