如何檢查所有內部數組的鍵中的值是否相同

Question

數組看起來像

array(
    "0" => array(
        "name" => "abc",
        "age" => 10
    )
    "1" => array(
        "name" => "def",
        "age" => 10
    )
)

我需要檢查php中的所有年齡是否相同

Answer 1

你可以這樣檢查：

<?php

$arr = array(
    "0"=>array(
      "name"=>"abc",
      "age"=>10,
    ),
    "1"=>array(
      "name"=>"def",
      "age"=>10,
    )
);

if(count($arr)) {
  if(count(array_unique(array_column($arr, 'age'))) > 1 && count($arr) > 0) {
    echo "Array contains different ages";
  } else {
    echo "Array contains same ages";
  }
} else {
    echo "Array has no ages";
}

輸出：

Array contains same ages

這是eval 。 去那里試試！