PHP检查，如果数组为空

Question

我有一个多维数组如下

Array 
(
    [0] => Array 
     (
      [featured] => Yes 
      [job_code] => WT3 
      [title] => Senior Test Engineer - dB Testing 
      [no_of_pos] => 5 
      [experience] => 3 to 5 years 
      [job_desc] => Work with Dev counterparts to understand the implementation details. 
Adhere to all quality standards from QA perspective. 
Able to independently come up with test cases based on the analysis of functionality. 
Test planning and Test Design (Creation of Test scenarios/Test Cases) 
Preparation of Test environment 
Execution of Test cases 
Identification, reporting and tracking of defects 
      [skillsets] => Should be experienced in testing on Mac OS X 
Should be familiar with terms such as plist, starutp options on Mac, OS versions 
Should be familiar with Terminal and Console on Mac OS X 
Should be familiar with Apple Script Editor or Automator 
Should be able to troubleshoot basic boot issues on Mac 
      [keywords] => Black Box testing, Web Testing, e-Commerce, SQL queries/database testing 
     ) 

    [1] => Array 
     (
      [featured] => No 
      [job_code] => MNX-7A 
      [title] => Test Engineer - Mac OS X 
      [no_of_pos] => 1 
      [experience] => 3 to 5 years 
      [job_desc] => Should be excellent in Black Box Test Case Design 
Should be able to understand business requirements and develop relevant scenarios and test cases 
Good knowledge on the SDLC/STLC 
Preparation of Test environment 
Execution of Test cases 
Identification, reporting and tracking of defects 
      [skillsets] => Should be experienced in testing on Mac OS X 
Should be familiar with terms such as plist, starutp options on Mac, OS versions 
Should be familiar with Terminal and Console on Mac OS X 
Should be familiar with Apple Script Editor or Automator 
Should be able to troubleshoot basic boot issues on Mac 
      [keywords] => Black Box Testing, Mac OS X 
     ) 

) 

我想要遍历数组通，并确保所有的字段有一个值，而不是空。

这是最好的办法吗？

Answer 1

请试试这个：

<?php 

$data=array 
(
    0 => array 
     (
      'featured' => 'Yes', 
      'job_code' => 'WT3', 
      'title' => 'Senior Test Engineer - dB Testing', 
      'no_of_pos' => '5', 
      'experience' => '3 to 5 years', 
      'job_desc' => 'Work with Dev counterparts to understand the implementation details. 
Adhere to all quality standards from QA perspective. 
Able to independently come up with test cases based on the analysis of functionality. 
Test planning and Test Design (Creation of Test scenarios/Test Cases) 
Preparation of Test environment 
Execution of Test cases 
Identification, reporting and tracking of defects 
      [skillsets] => Should be experienced in testing on Mac OS X 
Should be familiar with terms such as plist, starutp options on Mac, OS versions 
Should be familiar with Terminal and Console on Mac OS X 
Should be familiar with Apple Script Editor or Automator 
Should be able to troubleshoot basic boot issues on Mac', 
      'keywords' => 'Black Box testing, Web Testing, e-Commerce, SQL queries/database testing' 
     ), 

    1 => array 
     (
      'featured' => 'No', 
      'job_code' => 'MNX-7A', 
      'title' => 'Test Engineer - Mac OS X', 
      'no_of_pos' => '1', 
      'experience' => '3 to 5 years', 
      'job_desc' => 'Should be excellent in Black Box Test Case Design 
Should be able to understand business requirements and develop relevant scenarios and test cases 
Good knowledge on the SDLC/STLC 
Preparation of Test environment 
Execution of Test cases 
Identification, reporting and tracking of defects', 
      'skillsets' => 'Should be experienced in testing on Mac OS X 
Should be familiar with terms such as plist, starutp options on Mac, OS versions 
Should be familiar with Terminal and Console on Mac OS X 
Should be familiar with Apple Script Editor or Automator 
Should be able to troubleshoot basic boot issues on Mac', 
      'keywords' => 'Black Box Testing, Mac OS X' 
     ) 

); 

function anyEmpty($array) { 
    foreach ($array as $arr) { 
     if (!is_array($arr)) { 
      if (empty($arr)) { 
       return true; 
      } 
     } else { 
      if (anyEmpty($arr)) { 
       return true; 
      } 
     } 
    } 
    return false; 
} 

var_dump(anyEmpty($data)); 

?> 

在这个例子中，所有的字段设置，所以它会响应bool(false)。但是，如果我将其中一个字段更改为''，它将返回true。

实施例：

<?php 

$data=array 
(
    0=>array(
     0=>"hello", 
     1=>array(
      0=>"world" 
     ), 
     2=>array(
      0=>"my name", 
      array(
       0=>"" 
      ) 
     ) 
    ) 
); 

function anyEmpty($array) { 
    foreach ($array as $arr) { 
     if (!is_array($arr)) { 
      if (empty($arr)) { 
       return true; 
      } 
     } else { 
      if (anyEmpty($arr)) { 
       return true; 
      } 
     } 
    } 
    return false; 
} 

var_dump(anyEmpty($data)); 

?> 

这现在返回bool(true)。

Answer 2

我认为一个简单的循环总是更快。

function yourFunction($array, $key, $val) { 
    foreach ($array as $item) 
     if (isset($item[$key]) 
      // do what you intend to here 
} 

Answer 3

您可以使用下面的一个。它参考php.net here

function is_multiArrayEmpty($multiarray) { 
     if(is_array($multiarray) and !empty($multiarray)){ 
      $tmp = array_shift($multiarray); 
       if(!is_multiArrayEmpty($multiarray) or !is_multiArrayEmpty($tmp)){ 
        return false; 
       } 
       return true; 
     } 
     if(empty($multiarray)){ 
      return true; 
     } 
     return false; 
    }