Question

我的下面有一个关联数组：

<?php 
    $first = array(
        array('lastexam' => '170220', 'nextexam' => '170220', 'phone' => '170220', 'fax' => '170220'),
        array('lastexam' => '170220', 'nextexam' => '170220', 'phone' => '170220', 'fax' => '170220'),
        array('lastexam' => '170221', 'nextexam' => '170220', 'phone' => '170224', 'fax' => '170220'),
        array('lastexam' => '170221', 'nextexam' => '170226', 'phone' => '170220', 'fax' => '170220'),
        array('lastexam' => '170222', 'nextexam' => '170220', 'phone' => '170225', 'fax' => '170220')
    ); 
?>

我需要将值$first[0]与$first[1]，$first[1]与$first[2]，$first[2]与$first[3]以及{{1}进行比较到$first[3]。我需要得到如下结果：

例如：

$first[4]

Answer 1

我认为这可以解决您的问题

<?php 
    $first = array(
        array('lastexam' => '170220', 'nextexam' => '170220', 'phone' => '170220', 'fax' => '170220'),
        array('lastexam' => '170220', 'nextexam' => '170220', 'phone' => '170220', 'fax' => '170220'),
        array('lastexam' => '170221', 'nextexam' => '170220', 'phone' => '170224', 'fax' => '170220'),
        array('lastexam' => '170221', 'nextexam' => '170226', 'phone' => '170220', 'fax' => '170220'),
        array('lastexam' => '170222', 'nextexam' => '170220', 'phone' => '170225', 'fax' => '170220')
        );

    $pre = array();
    $cur = array();
    $tmp = array();
    echo '<pre>'; print_r($first); echo '</pre>';
    foreach($first as $key => $val) {
        foreach ($val as $key1 => $val1) {
            $cur[$key1] = $val1;
            if (isset($pre[$key1]) && $pre[$key1] !== $cur[$key1]) {
                $tmp[$key][$key1] = $val1;
            }
            $pre[$key1] = $val1;
        }
    }
    echo '<pre>'; print_r($tmp); echo '</pre>';
    ?>

如果是的话请在下面注明

Answer 2

我发现布拉德肯特在评论中使用array_diff要清楚得多。

$result = [];
for ($i = count($first)-1; $i >= 1; $i--) {
    $diff = array_diff($first[$i], $first[$i-1]);
    if (!empty($diff))
        $result[$i] = $diff;
}

Answer 3

这有点像你在寻找什么？

     $first = array(
        array('lastexam' => '170220', 'nextexam' => '170220', 'phone' => '170220', 'fax' => '170220'),
        array('lastexam' => '170220', 'nextexam' => '170220', 'phone' => '170220', 'fax' => '170220'),
        array('lastexam' => '170221', 'nextexam' => '170220', 'phone' => '170224', 'fax' => '170220')
        ); 


    if((array_values($first)[0]['lastexam']) == (array_values($first)[1]['lastexam'])){

        var_dump(array_values($first)[2]['lastexam']);
        var_dump(array_values($first)[2]['phone']);

    } else {
        //
        echo "whatever..." ;
        //
    }

??还不完美，因为我没有掌握你想要实现的全局。但是，通过这个if语句，您可以至少比较您想要比较的内容。祝你好运！

比较关联数组值并返回不同的值

3 个答案: