PHP 中的 if、else 语句
为体育网站编写 if-else 语句时遇到问题。关键是根据解析的分数将 $game 显示为 W、L 或 Tie来自名为 $row["result"] 的变量的 MySQL 表。表中列的类型为VARCHAR，保存数据的格式为$row["result"] = "A:B"，其中A为主队得分，B为对手得分。我遇到了一个问题，我编写 if 语句时只能正确回显 Wins (W) 和 Ties (Tie)！
例如，
<?php
$wl = $row["result"];
if ($wl[1] > $wl[3]) {
$game = "W";
}
if ($wl[1] < $wl[3]) {
$game = "L";
}
if ($wl[1] == $wl[3]) {
$game = "Tie";
}
?>
当 $wl= A>B 和 A==B 时，$game 将正确输出，但 A时则不会正确输出。 B。我有一种感觉，这与 PHP 将 $wl 中的数据解释为不是数字，而是其他格式有关......
Problem with writing an if-else statement for a sports website. The key is to display $game as W, L, or Tie depending on the scores which are parsed from a MySQL table from a variable called $row["result"]. The type of the column in table is VARCHAR and format the data saved in is $row["result"] = "A:B" where A is the home team's score and B is the opponents score. I am running into a problem where I write the if statement I can only echo Wins (W) and Ties (Tie) correctly!
For example the code:
<?php
$wl = $row["result"];
if ($wl[1] > $wl[3]) {
$game = "W";
}
if ($wl[1] < $wl[3]) {
$game = "L";
}
if ($wl[1] == $wl[3]) {
$game = "Tie";
}
?>
$game will output correctly when $wl= A>B and A==B but not A<B. I have a feeling this has something to do with PHP interpreting the data from $wl as not numbers, but some other format...
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尝试在最后两个“if”条件上使用“else if”而不是“if”。你还对结果进行explode()处理吗？
Try using "else if" instead of "if" on the last two "if" conditions. Also are you explode()'ing the result?
我还建议使用explode()，但对于您使用的内容，我认为您应该引用 $wl[0] 和 $wl[2]，因为数组 $wl 从零索引开始。
I'd also recommend using explode(), but for what you're using I think you should be referencing $wl[0] and $wl[2], since the array $wl starts at zero index.
或者在这里，如果你想要以一种神秘的方式
Or here, if you want it in a cryptic way