在PHP'switch'语句中使用比较运算符 [英] Using comparison operators in a PHP 'switch' statement
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问题描述
我需要满足四个条件,我认为最好在PHP中使用switch
语句.但是,我需要检查整数是否小于或等于,或大于或等于.
I have four conditions that I need to go through and I thought it would be best to use the switch
statement in PHP. However, I need to check whether an integer is, let's say, less than or equal, or greater than and equal.
switch ($count) {
case 20:
$priority = 'low';
break;
case 40:
$priority = 'medium';
break;
case 60:
$priority = 'high';
break;
case 80:
$priority = 'severe';
break;
}
使用if()
语句,它将类似于以下内容:
With an if()
statement it would look like the following:
if ($count <= 20) {
$priority = 'low';
}
if ($count <= 40) {
$priority = 'medium';
}
在switch-case
中可以吗?
推荐答案
解决此问题的更一般的情况是:
A more general case for solving this problem is:
switch (true) {
case $count <= 20:
$priority = 'low';
break;
case $count <= 40:
$priority = 'medium';
break;
case $count <= 60:
$priority = 'high';
break;
default:
$priority = 'severe';
break;
}
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