Its an alias of DateTime::createFromFormat() .
It displays new DateTime object with the specified format
Example
<?php
$date = date_create_from_format(‘j-M-Y’, ’17-May-2012′);
echo date_format($date, ‘Y-m-d’);
?>
Output
2012-05-17
Tag Archives: Functions
DateTime::add()
We can add number of of days, months, years, hours and seconds with a DateTime object.
Example
<?php
$date = new DateTime(‘2007-05-05’);
$date->add(new DateInterval(‘P5Y’));
echo $date->format(‘Y-m-d’) . “n”;
?>
$date = new DateTime(‘2007-05-05’);
$date->add(new DateInterval(‘P5Y’));
echo $date->format(‘Y-m-d’) . “n”;
?>
Output
2012-05-05
date_add
Its an alias of DateTime::add()
We can add number of of days, months, years, hours and seconds with a DateTime object.
Example
<?php
$date = new DateTime(“24-May-2011 20:15:22”);
echo $date->format(“d-m-Y H:i:s”).'<br />’;
date_add($date, new DateInterval(“P1Y”));
echo ‘<br />’.$date->format(“d-m-Y”).’ : I Year’;
?>
Output
24-05-2011 20:15:22
24-05-2012 : I Year
checkdate
It checks whether the date is valid or not
General Format :checkdate ( int $month , int $day , int $year )
Example :
<?php
if(checkdate(12, 31, 2000))
echo “Given Date Is Correct”;
?>
Output
Given Date Is Correct
Date functions
- checkdate – It checks whether the date is valid or not
- date_add – Its an alias of DateTime::add()
- date_create_from_format – Its an alias of DateTime::createFromFormat()
- date_create – Its an alias of DateTime::__construct() and creates new DateTime object
- date_date_set – Its an alias of DateTime::setDate() and sets the date.
- date_default_timezone_get – Gets the default timezone used
- date_default_timezone_set – It can be used to set the time zone
- date_diff – It is an alias of DateTime::diff()
- date_format – It is an alias of DateTime::format()
- date_get_last_errors – It is an alias of DateTime::getLastErrors()
- date_interval_create_from_date_string – Alias of DateInterval::createFromDateString()
- date_interval_format – It is an Alias of DateInterval::format()
- date_isodate_set – It is an alias of DateTime::setISODate()
- date_modify – It an alias of DateTime::modify()
- date_offset_get – its an alias of DateTime::getOffset()
- date_parse_from_format – It returns details about given date
- date_parse – It returns associative array with detailed info about given date
- date_sub – Its an alias of DateTime::sub()
- date_sun_info – It Returns information about sunset/sunrise and twilight begin/end
- date_sunrise – It returns time of sunrise for a given day and location
- date_sunset – It returns time of sunset for a given day and location
- date_time_set – Its an alias of DateTime::setTime() and it sets the time
- date_timestamp_get – Its an alias of DateTime::getTimestamp()
- date_timestamp_set– Its an alias of DateTime::setTimestamp()
- date_timezone_get – Its an alias of DateTime::getTimezone()
- date_timezone_set – Its an alias of DateTime::setTimezone()
- date – It can be used to format the date/time of the server .
- getdate – It returns date/time details
- gettimeofday – It returns the current time.
- gmdate – Its similar to datefunction but formats GMT
- gmmktime – It returns Unix timestamp for a GMT date
- gmstrftime – it formats a GMT/UTC time/date according to locale settings
- idate – It formats a local time/date as integer
- localtime – It returns the local time
- microtime – It return current Unix timestamp with microseconds
- mktime – It returns Unix timestamp for a date
- strftime – It formats a local time/date according to locale settings
- strptime – it parses time/date generated with strftime()
- strtotime – it converts date/time into a Unix timestamp
- time – It returns current Unix timestamp
- timezone_abbreviations_list – Its an alias of DateTimeZone::listAbbreviations()
- timezone_identifiers_list – Its an alias of DateTimeZone::listIdentifiers()
- timezone_location_get – Its an alias of DateTimeZone::getLocation()
- timezone_name_from_abbr – It Returns the timezone name from abbreviation
- timezone_name_get – Its an alias of DateTimeZone::getName()
- timezone_offset_get – Its an alias of DateTimeZone::getOffset()
- timezone_open – Its an alias of DateTimeZone::__construct()
- timezone_transitions_get – Its an alias of DateTimeZone::getTransitions()
- timezone_version_get – It returns the version of the timezonedb
Generate Random Number
<?php echo rand(1, 10) ?>
Find the position of a character in a string
We can find out the position using the function strpos() that will return the position of a character
Example
<?php
$string=”phpcodez.com”;
echo strpos($string,”.”) // 8
?>
Check magic quotes off – PHP
<?php echo get_magic_quotes_gpc()?”Enabled”:”Disabled”; ?>
Function
A function is a group of statements that will do certain tasks.
Why Function
When we develop a module in a project , we may need to implement certain tasks(block of statements ) more than once . Writing same block of codes more than once is not at all a good practice . Instead we can give a name to that block and can use them whenever necessary . When we define a block with a name , it is known as function .
General Format
function funation_name(){
echo “Error”; // can be on or more lines of statements
}
function – a keyword
funation_name – Any desired name(Should be meaningful)
Once the function is desfined , You can can invoke it by calling its name
<?php funation_name(); ?> // It will print the text “ Error”
A function can have arguments . When a fuction is define using arguments in it , we should pass the values when calling the it .
Example :
function function_sum($a,$b){
echo $a+$b;
}
<?php function_sum(7,8); ?> // It will display 15 as the result .
Note : We should not use any Builtin function name as the function name
PHP functions
A function is a group of statements that can be executed any time you want.
PHP has a number of predefine functions for you to use.
Below given are the different type of funtions available in PHP
- Date functions
- Math functions
- Array functions
- Calendar functions
- Directory functions
- Error functions
- Filesystem functions
- Filter functions
- FTP functions
- HTTP functions
- LibXML functions
- Zip functions
- Mail functions
- Misc functions
- MySQL functions
- SimpleXML functions
- String functions
- XML Parser functions
Pramod T P 