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uphp:functions:filesize

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uphp:functions:filesize [2017/04/10 12:39]
jeff 		uphp:functions:filesize [2021/09/13 05:57] (current)
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 **Filename Form** - The syntax is the same as in mainline PHP, and uses a filename for the parameter: **Filename Form** - The syntax is the same as in mainline PHP, and uses a filename for the parameter:
  
-<well size="sm"> +<well size="sm"><html>
-<html>+
 <span style="font-size:125%;color:green">int <span style="font-size:125%;color:green">int
-<span style="color:black"> +<span style="color:black">filesize (
-</html> +
-[[filesize]] ( +
-<html>+
 <span style="color:green">string <span style="color:green">string
 <span style="color:blue">$filename <span style="color:blue">$filename
 <span style="color:black">) <span style="color:black">)
-</html> +</html></well>
-</well>+
  
-**Handle Form** - The syntax is unique to uPHP,((The Handle Form is more commonly used on the Wattmon. Compared to mainline PHP, this uPHP form is a much simpler method for retrieving the number of bytes pending in a stream. For examples of how much more complex mainline PHP can be, take a look at the PHP function [[http://php.net/manual/en/function.stream-get-meta-data.php|stream-get-meta-data]] which returns an <html><b><span style="color:green">array<span style="color:black"></b></html> with one of the elements containing 'unread_bytes'.)) and uses an open resource handle for the parameter (which works with streams, sockets, ports and files):+**Handle Form** - The syntax is unique to uPHP,((The Handle Form is more commonly used on the [[hardware:wattmons|Wattmon]]. Compared to mainline PHP, this uPHP form is a much simpler method for retrieving the number of bytes pending in a stream. For examples of how much more complex mainline PHP can be, take a look at the PHP function [[http://php.net/manual/en/function.stream-get-meta-data.php|stream-get-meta-data]] which returns an <html><b><span style="color:green">array<span style="color:black"></b></html> with one of the elements containing 'unread_bytes'.)) and uses an open resource handle for the parameter (which works with streams, sockets, ports and files):
  
-<well size="sm"> +<well size="sm"><html>
-<html>+
 <span style="font-size:125%;color:green">int <span style="font-size:125%;color:green">int
-<span style="color:black"> +<span style="color:black">filesize (
-</html> +
-[[filesize]] ( +
-<html>+
 <span style="color:green">int <span style="color:green">int
 <span style="color:blue">$handle <span style="color:blue">$handle
 <span style="color:black">) <span style="color:black">)
-</html> +</html></well>
-</well>+
  
 The Handle Form works in different ways, depending on the type of resource. For streams, sockets and ports it will return the number of unread bytes in the receive buffer. For files it will return the total number of bytes in the file.((I haven't verified this yet, perhaps for files the Handle Form returns the number of bytes remaining to be read beyond the pointer. - Jeff, 2/23/17)) The Handle Form works in different ways, depending on the type of resource. For streams, sockets and ports it will return the number of unread bytes in the receive buffer. For files it will return the total number of bytes in the file.((I haven't verified this yet, perhaps for files the Handle Form returns the number of bytes remaining to be read beyond the pointer. - Jeff, 2/23/17))
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 <html><b><span style="color:blue">$handle<span style="color:black"></b></html>:  Valid handle of a previously opened resource (Handle Form) <html><b><span style="color:blue">$handle<span style="color:black"></b></html>:  Valid handle of a previously opened resource (Handle Form)
  
-====Return Value====+====Return Values====
  
-<html><b><span style="color:green">Integer<span style="color:black"></b></html> bytes in the file or pending in the stream or socket+<html><b><span style="color:green">Integer<span style="color:black"></b></html> number of bytes in the file, or pending in the stream or socket
  
 ====Examples==== ====Examples====
  
-**Filename Form, output the size of the System Log:**+===Filename Form, output the size of the System Log===
  
 <code php> <code php>
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 </code> </code>
  
-**Handle Form, for a file, output the file size:**+===Handle Form, for a file, output the file size===
  
 <code php> <code php>
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 ?></code> ?></code>
  
-**Handle Form, for a socket** - this example is extracted from the Wattmon OS "/scripts/ip_dongle.cgi":+===Handle Form, for a socket=== 
 + 
 +This example is extracted from the Wattmon OS "/scripts/ip_dongle.cgi":
  
 <code php> <code php>
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 [[file_exists()]] - Check if a file exists [[file_exists()]] - Check if a file exists
  
-[[ini_get()]] - Return the value associated with the key if it exists, or the default value otherwise+[[ini_get()]] - Get a value from an INI file
  
  
uphp/functions/filesize.1491827968.txt.gz · Last modified: 2021/09/13 05:56 (external edit)

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