Skip to content

NimTechnology

Trình bày các công nghệ CLOUD một cách dễ hiểu.

  • Kubernetes & Container
    • Docker
    • Kubernetes
      • Ingress
      • Pod
    • Helm Chart
    • OAuth2 Proxy
    • Isito-EnvoyFilter
    • Apache Kafka
      • Kafka
      • Kafka Connect
      • Lenses
    • Vault
    • Longhorn – Storage
    • VictoriaMetrics
    • MetalLB
    • Kong Gateway
  • CI/CD
    • ArgoCD
    • ArgoWorkflows
    • Argo Events
    • Spinnaker
    • Jenkins
    • Harbor
    • TeamCity
    • Git
      • Bitbucket
  • Coding
    • DevSecOps
    • Terraform
      • GCP – Google Cloud
      • AWS – Amazon Web Service
      • Azure Cloud
    • Golang
    • Laravel
    • Python
    • Jquery & JavaScript
    • Selenium
  • Log, Monitor & Tracing
    • DataDog
    • Prometheus
    • Grafana
    • ELK
      • Kibana
      • Logstash
  • BareMetal
    • NextCloud
  • Toggle search form

[PHP] Hướng dẫn kiểm tra array rỗng hay null không?

Posted on June 18, 2021December 13, 2021 By nim No Comments on [PHP] Hướng dẫn kiểm tra array rỗng hay null không?

Contents

Toggle
  • 1) Recheck array is empty or null
  • 2) Removing key that has a null value in an array

1) Recheck array is empty or null

Link: https://www.geeksforgeeks.org/how-to-check-whether-an-array-is-empty-using-php/

Cách 1:

<?php

// Declare an array and initialize it
$non_empty_array = array('URL' => 'https://www.geeksforgeeks.org/');

// Declare an empty array
$empty_array = array();

// Condition to check array is empty or not
if(!empty($non_empty_array))
	echo "Given Array is not empty <br>";

if(empty($empty_array))
	echo "Given Array is empty";
?>

Cách 2

<?php

// Declare an empty array
$empty_array = array();

// Function to count array
// element and use condition
if(count($empty_array) == 0)
	echo "Array is empty";
else
	echo "Array is non- empty";
?>

Cách 3:

<?php

// Declare an empty array
$empty_array = array();

// Use array index to check
// array is empty or not
if( sizeof($empty_array) == 0 )
	echo "Empty Array";
else
	echo "Non-Empty Array";
?>

2) Removing key that has a null value in an array

Tiếp theo là phần khác (update Mon 13 Dec 2021) Xoá key và value nếu value bằng null

https://stackoverflow.com/questions/4352203/any-php-function-that-will-strip-properties-of-an-object-that-are-null

$json = json_encode($complexObject);
echo preg_replace('/,\s*"[^"]+":null|"[^"]+":null,?/', '', $json);

Mình thấy kiểu trên khá hay

Laravel

Post navigation

Previous Post: [Guacamole] Hướng dẫn cài đặt và sử dụng Guacamole remote windows để tạo môi trường làm việc trên cloud
Next Post: Vẽ chart cực đẹp bằng Morris JS và hướng dẫn fix lỗi morris không làm việc trên tab của bootstap

More Related Articles

[Laravel] Laravel code is helpful Laravel
[sweetalert2] Utilize SweetAlert2 to add an additional popup to your website. Laravel
[Laravel] Các dòng code hữu ích trong laravel Laravel
[Laravel] Debug an object in Laravel Laravel
[php-laravel] Handle a new project laravel. Laravel
[Laravel] Splitting Layouts in Laravel: Utilizing Blade’s @extends, @yield, and @section Directives Laravel

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Tham Gia Group DevOps nhé!
Để Nim có nhiều động lực ra nhiều bài viết.
Để nhận được những thông báo mới nhất.

Recent Posts

  • [Laravel] Laravel Helpful June 26, 2025
  • [VScode] Hướng dẫn điều chỉnh font cho terminal June 20, 2025
  • [WordPress] Hướng dấn gửi mail trên WordPress thông qua gmail. June 15, 2025
  • [Bitbucket] Git Clone/Pull/Push with Bitbucket through API Token. June 12, 2025
  • [Teamcity] How to transfer the value from pipeline A to pipeline B June 9, 2025

Archives

  • June 2025
  • May 2025
  • April 2025
  • March 2025
  • February 2025
  • January 2025
  • December 2024
  • November 2024
  • October 2024
  • September 2024
  • August 2024
  • July 2024
  • June 2024
  • May 2024
  • April 2024
  • March 2024
  • February 2024
  • January 2024
  • December 2023
  • November 2023
  • October 2023
  • September 2023
  • August 2023
  • July 2023
  • June 2023
  • May 2023
  • April 2023
  • March 2023
  • February 2023
  • January 2023
  • December 2022
  • November 2022
  • October 2022
  • September 2022
  • August 2022
  • July 2022
  • June 2022
  • May 2022
  • April 2022
  • March 2022
  • February 2022
  • January 2022
  • December 2021
  • November 2021
  • October 2021
  • September 2021
  • August 2021
  • July 2021
  • June 2021

Categories

  • BareMetal
    • NextCloud
  • CI/CD
    • Argo Events
    • ArgoCD
    • ArgoWorkflows
    • Git
      • Bitbucket
    • Harbor
    • Jenkins
    • Spinnaker
    • TeamCity
  • Coding
    • DevSecOps
    • Golang
    • Jquery & JavaScript
    • Laravel
    • NextJS 14 & ReactJS & Type Script
    • Python
    • Selenium
    • Terraform
      • AWS – Amazon Web Service
      • Azure Cloud
      • GCP – Google Cloud
  • Kubernetes & Container
    • Apache Kafka
      • Kafka
      • Kafka Connect
      • Lenses
    • Docker
    • Helm Chart
    • Isito-EnvoyFilter
    • Kong Gateway
    • Kubernetes
      • Ingress
      • Pod
    • Longhorn – Storage
    • MetalLB
    • OAuth2 Proxy
    • Vault
    • VictoriaMetrics
  • Log, Monitor & Tracing
    • DataDog
    • ELK
      • Kibana
      • Logstash
    • Fluent
    • Grafana
    • Prometheus
  • Uncategorized
  • Admin

Copyright © 2025 NimTechnology.