Question

如何将字符串与声明的变量连接起来？

block_id列是外键，我想插入room_id = Block 2/R1和block_id = Block 2。

require 'db.php';

$block = 2;

for($i=1;$i <= 50; $i++){

$sql = $mysqli->query("INSERT INTO `room` (`room_id`, `room_type`, `blck_id`) "
        . "VALUES ('Block '.$block.'/R'.$i, 'Double', 'Block '.$block)");

table room image

Answer 1

您不需要在查询字符串中添加.。

$mysqli->query("INSERT INTO `room` (`room_id`, `room_type`, `blck_id`) "
    . "VALUES ('Block $block/R$i', 'Double', 'Block $block')");

如果要查询$block = 1和$i = 2

INSERT INTO `room` (`room_id`, `room_type`, `blck_id`) VALUES ('Block 1/R2', 'Double', 'Block 1')

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1 个答案: