Php 有了这个规则,我怎么能说同一个字段大于或小于0?
php代码:Php 有了这个规则,我怎么能说同一个字段大于或小于0?,php,mysql,Php,Mysql,php代码: <td><?php echo $prod['gross_total'] >= 0 ?></td> <td><?php echo $prod['gross_total'] <= 0 ?></td> 在同一字段中,有值, $300,$350,$-100,要获取这些值吗并将其作为更高的值放在桌面上对于左侧和较低的值在桌子的右边。 条目|输出 $300 |$-100 350美元您可以在
<td><?php echo $prod['gross_total'] >= 0 ?></td>
<td><?php echo $prod['gross_total'] <= 0 ?></td>
在同一字段中,有值, $300,$350,$-100,要获取这些值吗并将其作为更高的值放在桌面上对于左侧和较低的值在桌子的右边。条目|输出
$300 |$-100
350美元您可以在一条语句中进行多次比较
(expr) <=> (expr)
对于三元运算符,您可以使用:
$prod['gross_total']=-1;
echo $prod['gross_total']>0 ? 'more than 0' : 'less than or equal to 0';
$prod['gross_total']=-1;
switch (TRUE) {
case ($prod['gross_total']>0):
//do this code
echo "positive";
break;
case ($prod['gross_total']<0):
//do this code
echo "negative";
break;
default:
//do nothing
echo "neutral";
}
$prod['gross_total']=array("1" => "3", "2" => "-1", "3" => "-4", "4" => "4");
asort($prod['gross_total']);
foreach ($prod['gross_total'] as $key => $val) {
echo "$key = $val<br>";
}
这三个部分如下:
$prod['gross_total']=-1;
echo $prod['gross_total']>0 ? 'more than 0' : 'less than or equal to 0';
$prod['gross_total']=-1;
switch (TRUE) {
case ($prod['gross_total']>0):
//do this code
echo "positive";
break;
case ($prod['gross_total']<0):
//do this code
echo "negative";
break;
default:
//do nothing
echo "neutral";
}
$prod['gross_total']=array("1" => "3", "2" => "-1", "3" => "-4", "4" => "4");
asort($prod['gross_total']);
foreach ($prod['gross_total'] as $key => $val) {
echo "$key = $val<br>";
}
$prod['gross\u total']=-1;
开关(真){
案例($prod['gross_total']>0):
//执行此代码吗
回应“积极”;
打破
案例($prod['gross_total']“3”,“2”=>“-1”,“3”=>“-4”,“4”=>“4”);
asort($prod['gross_total');
foreach($prod['gross\u total']作为$key=>$val){
回显“$key=$val
”;
}
此字段甚至返回银行的hum特定值,我将表分为最高值和最低值。请不要在注释中转储代码。编辑OP以添加任何新信息。这是用于记账的吗?注意:这仅适用于PHP 7.0+,如果您使用的是旧版本,则不起作用。