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uphp:functions:strftime

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uphp:functions:strftime [2017/05/08 20:40]
jeff 		uphp:functions:strftime [2021/09/13 05:57] (current)
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 <badge>WMPRO, WMMINI FW >= 1.0</badge> <badge>WMMEGA FW >= 2.0</badge> <badge>WMPRO, WMMINI FW >= 1.0</badge> <badge>WMMEGA FW >= 2.0</badge>
  
-<html>Format a Linux <b><span style="color:blue">timestamp<span style="color:black"></b> using a <b><span style="color:blue">format<span style="color:green"> string</b></html>+<html>Format a Linux <b><span style="color:blue">Timestamp<span style="color:black"></b> using a <b><span style="color:blue">format<span style="color:green"> string</b></html>
  
 ====Description==== ====Description====
  
-<well size="sm"> +<well size="sm"><html>
-<html>+
 <span style="font-size:125%;color:green">string <span style="font-size:125%;color:green">string
 <span style="color:black">strftime ( <span style="color:black">strftime (
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 <span style="color:blue">$timestamp <span style="color:blue">$timestamp
 <span style="color:black">) <span style="color:black">)
-</html> +</html></well>
-</well>+
  
 ====Parameters==== ====Parameters====
  
-<html><b><span style="color:blue">$format<span style="color:black"></b>:  A <b><span style="color:green">string<span style="color:black"></b></html> with [[#format_characters|Format Character Sequences]], and which can also contain literal text+<html><b><span style="color:blue">$format<span style="color:black"></b>:  A <b><span style="color:green">string<span style="color:black"></b></html> with **Format Character Sequences** which can also contain literal text
  
 <html><b><span style="color:blue">$timestamp<span style="color:black"></b></html>:  Seconds since January 1, 1970, 00:00:00, local Wattmon time <html><b><span style="color:blue">$timestamp<span style="color:black"></b></html>:  Seconds since January 1, 1970, 00:00:00, local Wattmon time
  
-====Return Value====+====Return Values====
  
-Formatted <html><b><span style="color:green">string</b></html> with all supported [[#format_characters|Format Character Sequences]] replaced with the converted value+Formatted <html><b><span style="color:green">string</b></html> with all supported **Format Character Sequences** replaced with the converted value
  
 ====Format Character Sequences==== ====Format Character Sequences====
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 A Format Character Sequence (conversion specifier) is always 2 characters starting with a ''%'' character. Therefore, any text in the <html><b><span style="color:blue">format <span style="color:green">string</b></html> which is not preceded by a ''%'' character will be placed into the returned <html><b><span style="color:green">string</b></html> as literal text, unchanged.  Conversion specifiers are case-sensitive. A Format Character Sequence (conversion specifier) is always 2 characters starting with a ''%'' character. Therefore, any text in the <html><b><span style="color:blue">format <span style="color:green">string</b></html> which is not preceded by a ''%'' character will be placed into the returned <html><b><span style="color:green">string</b></html> as literal text, unchanged.  Conversion specifiers are case-sensitive.
  
-The following conversion specifiers may be used((The [[#format_characters|Format Characters]] table is based upon the table at http://php.net/manual/en/function.strftime.php.  Most of the conversion specifiers have been implemented on the Wattmon. However, some specifiers may not be supported as described, depending on the Wattmon hardware, firmware and operating system versions, and due to the limitations of the Wattmon system, which is purposely designed to fit into a very small memory footprint.)) in the <html><b><span style="color:blue">format <span style="color:green">string</b></html>:+The following conversion specifiers may be used((The [[#format_characters|Format Characters]] table is based upon the table at http://php.net/manual/en/function.strftime.php.  Most of the conversion specifiers have been implemented on the [[hardware:wattmons|Wattmon]]. However, some specifiers may not be supported as described, depending on the Wattmon hardware, firmware and operating system versions, and due to the limitations of the Wattmon system, which is purposely designed to fit into a very small memory footprint.)) in the <html><b><span style="color:blue">format <span style="color:green">string</b></html>:
  
 ^Category^Format Characters^Description^Example Return Values^ ^Category^Format Characters^Description^Example Return Values^
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 |:::|''%T''|Same as ''%H:%M:%S''|21:34:17 for 09:34:17 PM| |:::|''%T''|Same as ''%H:%M:%S''|21:34:17 for 09:34:17 PM|
 |:::|''%X''|Preferred time representation based on locale, without the date|03:59:16 or 15:59:16| |:::|''%X''|Preferred time representation based on locale, without the date|03:59:16 or 15:59:16|
-|:::|''%z''|The time zone offset. //Currently not supported on the Wattmon.//|-0500 for US Eastern Time| +|:::|''%z''|The time zone offset. //Currently not supported on the [[hardware:wattmons|Wattmon]].//|-0500 for US Eastern Time| 
-|:::|''%Z''|The time zone abbreviation. //Currently not supported on the Wattmon.//|EST for Eastern Time|+|:::|''%Z''|The time zone abbreviation. //Currently not supported on the [[hardware:wattmons|Wattmon]].//|EST for Eastern Time|
 |**Time and Date Stamps**|''%c''|Preferred date and time stamp based on locale|Tue Feb 5 00:45:10 2009 for February 5, 2009 at 12:45:10 AM| |**Time and Date Stamps**|''%c''|Preferred date and time stamp based on locale|Tue Feb 5 00:45:10 2009 for February 5, 2009 at 12:45:10 AM|
 |:::|''%D''|Same as ''%m/%d/%y''|02/05/09 for February 5, 2009| |:::|''%D''|Same as ''%m/%d/%y''|02/05/09 for February 5, 2009|
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 |**Miscellaneous**|''%n''|A newline character ("\n")|---| |**Miscellaneous**|''%n''|A newline character ("\n")|---|
 |:::|''%t''|A Tab character ("\t")|---| |:::|''%t''|A Tab character ("\t")|---|
-|:::|''%%''|A literal percentage character (''%'')|---|+|:::|''%%''|A literal percentage character|%|
  
 ====Notes==== ====Notes====
  
-Unlike mainline PHP, in uPHP "Linux timestamps" are based upon the Wattmon's local time, not UTC/GMT.+Unlike mainline PHP, in uPHP "Linux Timestamps" are based upon the Wattmon's local time, not UTC/GMT.
  
-Technically, the Unix Epoch is defined as being January 1, 1970, 00:00:00 //GMT//. But on the Wattmon, timestamps are relative to January 1, 1970, 00:00:00 //local timezone//.+Technically, the Unix Epoch is defined as being January 1, 1970, 00:00:00 //GMT//. But on the [[hardware:wattmons|Wattmon]], timestamps are relative to January 1, 1970, 00:00:00 //local timezone//.
  
 If the Wattmon clock and timezone are set to UTC+00 (GMT) then the uPHP timestamp //is// the same as mainline PHP, otherwise not. If the Wattmon clock and timezone are set to UTC+00 (GMT) then the uPHP timestamp //is// the same as mainline PHP, otherwise not.
  
-In uPHP on the Wattmon this simplification is referred to as a "Linux timestamp" but it should be noted that it may not be exactly the same, depending on the Wattmon's timezone settings.+In uPHP on the Wattmon this simplification is referred to as a "Linux Timestamp" but it should be noted that it may not be exactly the same, depending on the Wattmon's timezone settings.
  
-In other words:  Wattmon "Linux timestamps" are based upon local Wattmon time and are not adjusted by the timezone setting in Control Panel > Time Settings (Time and Date Settings) > UTC Offset.  (These settings are stored in ''/config/time.ini''.)+In other words:  Wattmon "Linux Timestamps" are based upon local Wattmon time and are not adjusted by the timezone setting in Control Panel > Time Settings (Time and Date Settings) > UTC Offset.  (These settings are stored in ''/config/time.ini''.)
  
 ====See Also==== ====See Also====
  
-[[microtime()]] - Return number of milliseconds since boot+[[microtime()]] - Return the number of milliseconds since boot
  
-[[mktime()]] - Return Linux timestamp for a given date and time+[[mktime()]] - Return the Linux Timestamp for a given date and time
  
-[[settime()]] - Set the system time from a Linux timestamp, with optional calibration+[[settime()]] - Set the system time from a Linux Timestamp, with optional calibration
  
-[[time()]] - Return current system timestamp+[[time()]] - Return the current system timestamp
  
-[[timefromfat()]] - Convert a FAT filetime to a Linux timestamp+[[timefromfat()]] - Convert a FAT filetime to a Linux Timestamp
  
-[[uptime()]] - Return uptime in milliseconds+[[uptime()]] - Return the uptime in milliseconds
  
uphp/functions/strftime.1494276023.txt.gz · Last modified: 2021/09/13 05:56 (external edit)

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