PHP calendars can be very useful. You can do things as simple as showing the date, and as complex as an online booking system. Learn some of our tutorials below.
1. Simple PHP Calendar
In this tutorial we will show you how to generate a very simple PHP calendar. Once you understand how to do this, you will be able to apply the same concepts to more complex calendars you may need.

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2. Building an Event Tracking Calendar
In this tutorial, we will show you how to create a calendar application that has the ability to add / remove events on a given day. We will be using MySQL as our database application to store and track events.
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3. Quick Calendar Using AJAX and PHP
Create a calendar that can plug itself into any system seamlessly without problems. Whether we are using WordPress, Mambo/Joomla or Drupal, we should only need to insert one line into our code for the calendar to work.

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4. PHP – Calendar, Datepicker Calendar
The calendar component written in php script. It contains 2 modes: normal display calendar and date picker.

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5. Easy Calendar Applications
In this tutorial, we will use the mstore calendar driver. The mstore calendar driver uses a local file storage format. Another driver that can be used is the ICAP driver, which allows access to remote calendar stores.

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6. Calendar System – Easily using PHP & Script.aculo.us
For this tutorial i am making it so you can change the date with the form and it will update the calendar without having to reload the entire page, AJAX style.

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7. Building a Simple Monthly Calendar
This PHP based one has a slightly different purpose – instead of populating an input field, it outputs links for the different dates and can be used for example as a monthly archive in a dynamic DB-driven site.

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8. Create a Google Calendar widget with PHP
Here we will use PHP to retrieve the events from a public Google Calendar and display them on a web page.

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9. Generate a Month Calendar in PHP
This article show you how to display a calendar for a given month, mainly using PHP’s date() function. The article talks you through the process of creating a function which allows you to specify the month and year for it to output the calendar for the month.

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10. Creating an Event Calendar
This is a tutorial explains about creating event calendar. ASP user can find more detailed information about building full featured event calendar with the facilities to allow members to read the events. Users can learn exactly with the help of given sample codes.

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i like these material. thanks post them.