如何检查数组是否包含所有错误值？

How to check if an array contains all false values?

$arr  = array(false, false, false);
$arr2 = array(true, false, false, 123);

check_false_array($arr);
true
check_false_array($arr2);
false

edit: not only true/false values are allowed

Use array_filter() and empty(). array_filter() will remove all false values and if empty() returns true you have all false values.

function check_false_array(array $array) {
    return empty(array_filter($array, 'strlen'));
}

var_export(check_false_array(array(false, false, false)));
echo "
";
var_export(check_false_array(array(false, true, false)));
echo "
";
var_export(check_false_array(array(0,0,0)));

Demo

If you want 0 to be considered false just remove the callback to 'strlen' in array_filter().

Demo

these two functions will check for what you need, assuming the arrays can only have "true" or "false" and nothing else

function isFalseArray($arr){
    foreach($arr as $a){
        if($a == "true")
           return false;
    }
    return true;
}

function isTrueArray($arr){
    foreach($arr as $a){
        if($a == "false")
           return false;
    }
    return true;
}

You can use array_filter with a callback for identical match to false & empty to check.

$arr  = array(false, false, false);
$check = array_filter($arr, function($x) {
  return ($x !== false);
});

if(empty($check)) // $check will be empty if all the value is false (only false)