Items tagged PHP

Hashing functions

This page demonstrates PHP's hashing function. I knocked it together because I wanted a quick way of checking whether passwords stored in a password vault matched the passwords stored in databases. More information on this sort of thing is available from the PHP site, or from Wikipedia.

hashing, passwords, PHP

Date format demonstrator

The PHP date() function can present dates in lots of different formats. This page helps you to build your own formats

Format

Choose a format from the selector, or enter your own in the box. If you write a format, the selector will be ignored.

Enter a date

Enter the date you would like to convert. If you leave this field blank, the current time will be used. Information on acceptable formats

Date as ():

Date formats

Format code	Format description	2012-04-25T12:51:27+01:00
d	Day of the month, 2 digits with leading zeros	25
D	A textual representation of a day, three letters	Wed
j	Day of the month without leading zeros	25
l	A full textual representation of the day of the week	Wednesday
N	ISO-8601 numeric representation of the day of the week - 1 (for Monday) through 7 (for Sunday)	3
S	English ordinal suffix for the day of the month, 2 characters	th
w	Numeric representation of the day of the week - 0 (for Sunday) through 6 (for Saturday)	3
z	The day of the year (starting from 0)	115
W	ISO-8601 week number of year, weeks starting on Monday	17
F	A full textual representation of a month, such as January or March	April
m	Numeric representation of a month, with leading zeros - 01 through 12	04
M	A short textual representation of a month, three letters	Apr
n	Numeric representation of a month, without leading zeros	4
t	Number of days in the given month	30
L	Whether it's a leap year	1
o	ISO-8601 year number - if the ISO week number (W) belongs to the previous or next year, that year is used instead	2012
Y	A full numeric representation of a year, 4 digits	2012
y	A two digit representation of a year	12
a	Lowercase Ante meridiem and Post meridiem	pm
A	Uppercase Ante meridiem and Post meridiem	PM
B	Swatch Internet time	535
g	12-hour format of an hour without leading zeros	12
G	24-hour format of an hour without leading zeros	12
h	12-hour format of an hour with leading zeros	12
H	24-hour format of an hour with leading zeros	12
i	Minutes with leading zeros	51
s	Seconds, with leading zeros	27
u	Microseconds	000000
e	Timezone identifier	Europe/London
I	Whether or not the date is in daylight saving time 1 if Daylight Saving Time, 0 otherwise.	1
O	Difference to Greenwich time (GMT) in hours	+0100
P	Difference to Greenwich time (GMT) with colon between hours and minutes	+01:00
T	Timezone abbreviation	BST
Z	Timezone offset in seconds. The offset for timezones west of UTC is always negative, and for those east of UTC is always positive.	3600
c	ISO 8601 date	2012-04-25T12:51:27+01:00
r	RFC 2822 formatted date	Wed, 25 Apr 2012 12:51:27 +0100
U	Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)	1335354687
j M Y	Short date format	25 Apr 2012
Y-m-d	SQL date format	2012-04-25

date, PHP