Welcome to a quick tutorial on how to format date and time in PHP. Need to change the format of a date-time in PHP? There are 2 common ways to format date and time in PHP: .Parse the date into a DateTime object and use the format() function. $dt = new DateTime(“2011-02-03 04:05:06”); echo $dt->format(“Y-m-d …
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Welcome to a quick tutorial and examples of PHP callback functions. Functions are one of the most basic things that we learn in PHP, then come along with this “callback function” thing… So, just what is a callback? In simple terms, a callback function is: A function that we pass into another function as a …
Welcome to a tutorial on how to store and retrieve arrays into the database using PHP and MySQL. So you have an array in PHP and want to store it into the database? Well, bad news. MySQL only takes in flat strings, numbers, and timestamps. It does not accept arrays or objects. To store an …
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Welcome to a quick tutorial on how to create a date range in PHP. Need to loop through a range of dates, or generate date intervals? There are 2 common ways to create a range of dates in PHP: Using DateTime,DateInterval, and DatePeriod objects. $start = new DateTime(“2020-01-01”); $end = new DateTime(“2020-02-02”); $interval = new …
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Welcome to a tutorial on how to get and set the timezone in PHP. Working on an international project and have to deal with the timezones? To get and set the timezone in PHP: To get and set the system default timezone: Change the date.timezone directive in the php.ini file, or use date_default_timezone_set(TIMEZONE) in the …
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Welcome to a tutorial on how to calculate the difference between dates in PHP. Need to calculate the number of days, weeks, months, or years between two dates in PHP? There are 2 common ways to get the difference between two dates in PHP: Using date-time objects. $dtA = new DateTime(“2019-08-07”); $dtB = new DateTime(“2017-06-05”); …
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Welcome to a quick tutorial on how to compare dates PHP. Need to find out which is an earlier or later date in PHP? Do some date comparisons? The common ways to compare dates in PHP are: Parse the dates into date-time objects and compare them. $dtA = new DateTime(“2019-08-07”); $dtB = new DateTime(“2017-08-09”); echo …
Welcome to a tutorial on how to search and display results from the database using PHP and MySQL. Want to add a search box to your website? Well, it actually isn’t that difficult. In the simplest design, a “search and display results” only involves 2 steps. Create a simple HTML search form – With a …
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Welcome to a quick tutorial on how to add and subtract days, weeks, months to a date in PHP. So you need to do some “date yoga” in your project? There are 3 common ways to add and subtract from a date in PHP: Create a date-time object, then use the modify function. $dt = new …
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Welcome to a short tutorial on how to round off numbers in Javascript. So you have a project that needs to round off a number? To round off a number in Javascript – Math.round(12.34); Round up to the nearest whole number – Math.ceil(1.1); Round down to the nearest whole number – Math.floor(2.3); Drop the decimal …
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