为什么if else语句不运行else语句？

Question

我在PHP中的if和else语句有一个问题，它从不运行else语句。

输入表单为HTML格式：

   <input type="radio" name="marital_stat" id="single" value="single" />Single
   <input type="radio" name="marital_stat" id="married" value="married" />Married

   <input name="age" type="text" size="5" maxlength="3" placeholder="30" required/>

   <input name="work" type="radio" id="employee" value="employee" />Employee
   <input name="work" type="radio" id="own" value="own" />
    Own Business 
   <input name="work" type="radio" id="jobless" value="jobless" />Jobless

   <input name="place" type="radio" id="urban" value="urban" />Urban
   <input name="place" type="radio" id="rural" value="rural" />Rural</td>

以下是PHP代码：

if ($marital_stat == 'married')
{
    if ($age >= 18 || $age < 59)
    { 
        if ($work == 'jobless')
        { 
            if ($place == 'rural') { $loan_credibility == 5; }
        }
    }
}
else if ($marital_stat == 'single')
{ 
    if ($age >= 18 || $age < 59)
    {
        if ($work == 'employee')
        { 
            if ($place == 'rural') { $loan_credibility == 1; }
        }
    }
}

下面是一个将显示一些输出的条件：

$A = 'positive';
$B = 'negative';

if ($loan_credibility == 5 ){
    echo $B ;}
else{
    echo $A;
}

Answer 1

Answer 2

您没有else子句(这在使用else if时在逻辑上是必需的)...

if (condition) {
    code to be executed if condition is true;
} elseif (condition) {
    code to be executed if condition is true;
} else {
    code to be executed if condition is false;
}

做以下任何事情(#1或#2最有意义)……

将您的子句更改为else

• Or添加else子句<

• >G215else if >< if

• else if to else

<代码>G215

所以有两件事可以解决你的问题: 1) if-else if-else逻辑和2) = vs ==...

if ($marital_stat == 'married')
{
    if ($age >= 18 || $age < 59)
    { 
        if ($work == 'jobless')
        { 
            if ($place == 'rural') { $loan_credibility = 5; }
        }
    }
}

if ($marital_stat == 'single')
{ 
    if ($age >= 18 || $age < 59)
    {
        if ($work == 'employee')
        { 
            if ($place == 'rural') { $loan_credibility = 1; }
        }
    }
}