Question

好的所以我需要在数据库中搜索出生在两个日期之间的人的名字，网站要求用户输入这种格式的日期dd / mm / yyyy所以我需要操作才能使它工作在我的SQL搜索中。我做的是这个

＆＃13;

$date_1 = $_GET["date_1"];
$date_2 = $_GET["date_2"];

function reorderDate($date) { //30/11/1970
  $firstbrk = strpos($date, '/');
  $day = substr($date, 0, $firstbrk);
  $month = substr($date, $firstbrk + 1, -5);
  $year = substr($date, strlen($date) - 4);
  $corrDate = $year.
  "-".$day.
  "-".$month;
  return $corrDate;
}

echo $Cdate_1 = reorderDate($date_1);
echo $Cdate_2 = reorderDate($date_2);

$tablename = 'Cyclist';
$sql = "SELECT name, dob FROM Cyclist WHERE dob > ' . $Cdate_1 . ' AND dob < ' . $Cdate_2 . ';";

$res = & $db - > query($sql);
if (PEAR::isError($res)) {
  die($res - > getMessage());
}
echo "<br>";
echo $findings_numb = $res - > numRows();
while ($row = $res - > fetchRow()) {
  echo $row[0].
  "\n";
}

＆＃13;

我没有在数据库中找到任何东西，但是如果我使用这一行进行搜索，我发现很多结果为什么？

＆＃13;

$sql = "SELECT name, dob FROM Cyclist WHERE dob > '1970-30-11' AND dob < '1990-30-11';";

＆＃13;

Answer 1

变化

$sql = "SELECT name, dob FROM Cyclist WHERE dob > ' . $Cdate_1 . ' AND dob < ' . $Cdate_2 . ';";

到

$sql = "SELECT name, dob FROM Cyclist WHERE dob > '" . $Cdate_1 . "' AND dob < '" . $Cdate_2 . "';";

Answer 2

尝试这样的事情：

$sql = "SELECT name, dob FROM Cyclist WHERE dob > '$Cdate_1' AND dob < '$Cdate_2';";

当您使用双引号时，您不需要连接字符串。

使用php

2 个答案: