Question

我的多维数组是

Array (    
            [0] => Array ( 
                       [questionID] => 47
                       [surveyID] => 51
                       [userID] => 31 
                       [question_Title] => Choose Any One? 
                       [question_Type] => Dropdown 
                       [response] => 1.Android 2.Windows 3.Blackberry 
                       [required] => 0 
                       [add_time] => 0
            )
            [1] => Array ( 
                       [questionID] => 48 
                       [surveyID] => 51 
                       [userID] => 31 
                       [question_Title] => Is it? 
                       [question_Type] => Bigbox 
                       [response] => Yes No 
                       [required] => 1 
                       [add_time] => 0 
            )    

        )

然后使用foreach循环我提交每个值并将其插入MySQL db 但如果数组中存在[required] => 1，我就不想提交任何值

所以，如何检查天气整个阵列conatins [required] =＆gt; 1

Answer 1

似乎一个简单的foreach循环可以解决这个问题：

foreach($mainArray as $miniArray)
{
    if($miniArray['required']==1)
    {
        // Do insert stuff here.
    }
}

或者如果你想在输入之前检查它是否存在于数组中，一个简单的布尔应该可以做到这一点：

$hasRequired=false;
foreach($mainArray as $miniArray)
{
    if($miniArray['required']==1)
    {
        $hasRequired=true;
    }
}

if($hasRequired)
{
    // Do Insert Stuff here.
}

Answer 2

您可以使用array_filter：

$test_array = array(
    array(
        "required"=>0,
        "other_field"=>"value"
    ),
    array(
        "required"=>0,
        "other_field"=>"value"
    ),
    array(
        "required"=>0,
        "other_field"=>"value"
    ),
);

function checkIfRequired($var)
{
    return (is_array($var) && $var['required'] == 1);
}

if(sizeof(array_filter($test_array, "checkIfRequired"))){
    print 'required field exists';
}
else{
    print 'required field does not exist';
}

Answer 3

您可以使用is_array或in_array函数来检查数组的值。但是is_array函数比in_array更快更准确。这是php手册中的一个例子。该函数将检查整个数组。

    function myInArray($array, $value, $key){
//loop through the array
foreach ($array as $val) {
  //if $val is an array cal myInArray again with $val as array input
  if(is_array($val)){
    if(myInArray($val,$value,$key))
      return true;
  }
  //else check if the given key has $value as value
  else{
    if($array[$key]==$value)
      return true;
  }
}
return false;

}

检查数组多维数组是否包含值

3 个答案: