检查布尔值是true还是false

Question

我有这个代码的一小部分:

$company = array('relation' => $_SESSION['username']);
$companyresponse = $wcfclient->GetCompany($company);
    foreach ($companyresponse->GetCompanyResult as $key => $value){
    echo $value[0]; //This is the name of the company

    if ($value[1] == TRUE){
       echo "Company blocked";
    }
    elseif($value[1] == FALSE){
       echo "Company NOT blocked";
    }
    echo $value[1]; //This gives me the correct result, in this case: FALSE

$ value [1]的结果为FALSE,但是当它通过我的if语句时它返回:"公司被阻止",所以$ value [1]为TRUE,而它需要为FALSE.

有人能告诉我为什么它没有返回正确的值吗？

我也尝试过:

if ($value[1] == 1){
   echo "Company blocked";
}
else{
   echo "Company NOT blocked";
}

这给了我值FALSE,但不知何故if语句将其更改为TRUE.

var_dump($value[1]) 

当我尝试一个被正常阻止的公司时,它给了我正确的结果:

string(4) "True" Company blockedTrue

Answer 1

$ value 1的类型是"String"而不是"bool".

转换为布尔值时,以下值被视为FALSE:

the boolean FALSE itself
the integer 0 (zero)
the float 0.0 (zero)
the empty string, and the string "0"
an array with zero elements
an object with zero member variables (PHP 4 only)
the special type NULL (including unset variables)
SimpleXML objects created from empty tags

每个其他值都被视为TRUE(包括任何资源).

reference:转换为boolean(PHP手册)

所以,"假"==正确!

也许你可以把它们比作字符串:

if(strtoupper($value[1]) == "TRUE"){
    //...
}else{
    //...
}