$arraysAreEqual = ($a == $b); // TRUE if $a and $b have the same key/value pairs.
$arraysAreEqual = ($a === $b); // TRUE if $a and $b have the same key/value pairs in the same order and of the same types.

参见数组操作符。

EDIT

不等式运算符是!=，而非恒等运算符是!==来匹配相等 运算符==和恒等运算符===。

尝试序列化。这也将检查嵌套子数组。

$foo =serialize($array_foo);
$bar =serialize($array_bar);
if ($foo == $bar) echo "Foo and bar are equal";

if (array_diff($a,$b) == array_diff($b,$a)) {
  // Equals
}

if (array_diff($a,$b) != array_diff($b,$a)) {
  // Not Equals
}

从我的观点来看，最好使用array_diff而不是array_intersect，因为这种性质的检查通常返回的差异小于相似点，这样bool转换占用的内存更少。

注意，此解决方案适用于普通数组，并补充了上面发布的仅对字典有效的==和===。

array_diff -计算数组的差值

http://php.net/manual/en/function.array-diff.php

数组$array1，数组$array2[，数组$…]) 将array1与一个或多个其他数组进行比较，并返回array1中没有出现在任何其他数组中的值。

如果你想生成一份详细的报告，你可以使用这样的东西:

function deepCompare(Array $a, Array $b, string $parentAKey, string $parentBKey, bool $compareInverted = true, bool $compareValues = true, string $log = '')
{
    foreach ($a as $aKey => $aValue) {
        $fullAKey = implode('.', [$parentAKey, $aKey]);
        $fullBKey = implode('.', [$parentBKey, $aKey]);
        if (! isset($b[$aKey])) {
            $log .= "⍰ {$fullAKey} has no equivalent {$fullBKey}\n";
        } else {
            $bValue = $b[$aKey];
            if (is_array($aValue)) {
                $log = deepCompare($aValue, $bValue, $fullAKey, $fullBKey, false, $compareValues, $log);
            } else {
              if ($compareValues) {
                  if ($aValue != $bValue) {
                      $log .= "≠ {$fullAKey} value differs from {$fullBKey}\n";
                  }
              }
            }
        }
    }
    if ($compareInverted) {
        $log = deepCompare($b, $a, $parentBKey, $parentAKey, false, false, $log);
    }
    return $log;
}

下面是一个例子:

$november = [
  'site1' => [
    'id' => 15,
    'name' => 'Brazil',
    'extendedHours' => 454,
  ],
  'site2' => [
    'id' => 43,
    'name' => 'Portugal',
    'extendedHours' => 448,
  ],
  'site3' => [
    'id' => 49,
    'name' => 'Spain',
    'extendedHours' => 0,
  ],  
  'totalExtendedHours' => 902,
];

$december = [
  'site1' => [
    'id' => 15,
    'name' => 'Brazil',
    'extendedHours' => 498,
  ],
  'site2' => [
    'id' => 43,
    'name' => 'Portugal',
    'extendedHours' => 409,
    'extraRequests' => 6,
  ],
  'totalExtendedHours' => 907,
  'totalExtraRequests' => 6,
];

echo deepCompare(
    $november,    -- origin array
    $december,    -- target array
    'Nov2022',    -- descriptive name of origin array
    'Dec2022',    -- descriptive name of target array
    true,         -- should also compare arrays in reverse order?
    true          -- should care about array values? (false = names only)
);

这个例子将输出:

≠ Nov2022.site1.extendedHours value differs from Dec2022.site1.extendedHours
≠ Nov2022.site2.extendedHours value differs from Dec2022.site2.extendedHours
⍰ Nov2022.site3 has no equivalent Dec2022.site3
≠ Nov2022.totalExtendedHours value differs from Dec2022.totalExtendedHours
⍰ Dec2022.site2.extraRequests has no equivalent Nov2022.site2.extraRequests
⍰ Dec2022.totalExtraRequests has no equivalent Nov2022.totalExtraRequests

我希望这能帮助到一些人。

使用php函数array_diff(array1, array2);

它将返回数组之间的差值。如果是空的，那么它们相等。

例子:

$array1 = array(
    'a' => 'value1',

    'b' => 'value2',

    'c' => 'value3'
 );

$array2 = array(
    'a' => 'value1',

    'b' => 'value2',

    'c' => 'value4'
 );

$diff = array_diff(array1, array2);

var_dump($diff); 

//it will print array = (0 => ['c'] => 'value4' ) 

示例2:

$array1 = array(
    'a' => 'value1',

    'b' => 'value2',

    'c' => 'value3',
 );

$array2 = array(
    'a' => 'value1',

    'b' => 'value2',

    'c' => 'value3',
 );

$diff = array_diff(array1, array2);

var_dump($diff); 

//it will print empty;