Question

不确定我是否在问正确的问题，但我有一个带有几个“List”名称的数组，我想计算它们在阵列中出现的次数并打印出来。这是清单：

$array = ['EMC_IMP_PAT_ANT_REVIEW_MANG_20160105', 'EMC_IMP_PAT_ANT_REVIEW_MANG_20160105', 'EMC_IMP_PAT_ANT_REVIEW_MANG_20150105', 'EMC_IMP_PAT_ANT_REVIEW_MANG_30160105', 'EMC_IMP_PAT_ANT_REVIEW_MANG_20160205', 'EMC_IMP_PAT_ANT_REVIEW_MANG_20178105'];

我目前正在使用print_r和array_count_values来打印和计算数组。

print_r(array_count_values($array));

我的输出是：

Array
(
    [IMC_UMP_WRAP_ANNUAL_REVIEW_MANM_20160105] => 2
    [IMC_UMP_WRAP_ANNUAL_REVIEW_MANM_20150105] => 1
    [IMC_UMP_WRAP_ANNUAL_REVIEW_MANM_30160105] => 1
    [IMC_UMP_WRAP_ANNUAL_REVIEW_MANM_20160205] => 1
    [IMC_UMP_WRAP_ANNUAL_REVIEW_MANM_20178105] => 1
)

我想以某种方式摆脱“数组”这个词和括号。我理想的输出是：

[IMC_UMP_WRAP_ANNUAL_REVIEW_MANM_20160105] => 2
[IMC_UMP_WRAP_ANNUAL_REVIEW_MANM_20150105] => 1
[IMC_UMP_WRAP_ANNUAL_REVIEW_MANM_30160105] => 1
[IMC_UMP_WRAP_ANNUAL_REVIEW_MANM_20160205] => 1
[IMC_UMP_WRAP_ANNUAL_REVIEW_MANM_20178105] => 1

**方括号可以是可选的。谢谢！

Answer 1

如果您不想迭代数组（如上面的评论中所述），请尝试使用preg_replace删除不需要的部分：

$array = array(
    'EMC_IMP_PAT_ANT_REVIEW_MANG_20160105', 
    'EMC_IMP_PAT_ANT_REVIEW_MANG_20160105', 
    'EMC_IMP_PAT_ANT_REVIEW_MANG_20150105', 
    'EMC_IMP_PAT_ANT_REVIEW_MANG_30160105', 
    'EMC_IMP_PAT_ANT_REVIEW_MANG_20160205', 
    'EMC_IMP_PAT_ANT_REVIEW_MANG_20178105',
);
echo preg_replace(
    '/(^Array|^\\(\n|^\\)\n|^\s*)/m', 
    '', 
    print_r(array_count_values($array), true)
);

Answer 2

使用Foreach

$data=array_count_values($array);

echo '<pre>';

foreach($data as $key => $value){

    echo '[' . $key . '] =>' . $value . PHP_EOL;
}

echo '</pre>';

打印没有print_r标签的数组php

2 个答案: