Question

选定的ID将选择行并随机化。但是，它可以随机化相同的元素。例如： “我喜欢弹钢琴。” 我期待的输出被随机化为例如。 '像我一样弹钢琴' 但我收到的东西有时候变成'我钢琴般的钢琴就像钢琴' 这个词来自数据库（phpmyadmin）。如何使数据全部显示但不重复？

$strSQL = "SELECT * FROM sentences WHERE id 
ORDER BY RAND() LIMIT 1;";

$x = rand(1,4);
echo "$x";
$y = rand(1,4);
echo "$y";
$z = rand(1,4);
echo "$z";
$c = rand(1,4);
echo "$c";

$rs = mysql_query($strSQL);

// Loop the recordset $rs
while($row = mysql_fetch_array($rs)) {

    // Write the data of the person
    echo "<dt>Sentence:</dt><dd>" . $row["$x"] . " " . $row["$y"] . " " . $row["$z"] . " " . $row["$c"] ."</dd>";
}

Answer 1

你可以这样做：

//create an array with numbers 1-4
$order = array(1,2,3,4);

//shuffle them in random order
shuffle($order);

$rs = mysql_query($strSQL);

// Loop the recordset $rs
while($row = mysql_fetch_array($rs)) {
    // Write the data of the person
    //Display all the array values from 0-3 (array index starts from 0)
    echo "<dt>Sentence:</dt><dd>" . $row[$order[0]] . " " . $row[$order[1]] . " " . $row[$order[2]] . " " . $row[$order[3]] ."</dd>";
}

注意：

Please, don't use mysql_* functions in new code。它们不再被维护and are officially deprecated。请参阅red box？转而了解prepared statements，并使用PDO或MySQLi - this article将帮助您确定哪个。如果您选择PDO here is a good tutorial。

Answer 2

尝试使用shuffle()功能。

$strSQL = "SELECT * FROM sentences WHERE id 
ORDER BY RAND() LIMIT 1;";

// Loop the recordset $rs
while($row = mysql_fetch_array($rs)) {

    shuffle($row);

    // Write the data of the person
    echo "<dt>Sentence:</dt><dd>" . implode(' ', $row) . "</dd>";
}

无关：mysql_*自PHP 5.5起已被弃用，将来会被删除。请改用mysqli或PDO。

如何随机化PHP中选定行中的列

2 个答案:

注意：