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fgetcsv> <fflush
[edit] Last updated: Sat, 12 May 2012

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fgetc

(PHP 4, PHP 5)

fgetcGets character from file pointer

Description

string fgetc ( resource $handle )

Gets a character from the given file pointer.

Parameters

handle

The file pointer must be valid, and must point to a file successfully opened by fopen() or fsockopen() (and not yet closed by fclose()).

Return Values

Returns a string containing a single character read from the file pointed to by handle. Returns FALSE on EOF.

Warning

This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.

Examples

Example #1 A fgetc() example

<?php
$fp 
fopen('somefile.txt''r');
if (!
$fp) {
    echo 
'Could not open file somefile.txt';
}
while (
false !== ($char fgetc($fp))) {
    echo 
"$char\n";
}
?>

Notes

Note: This function is binary-safe.

See Also

  • fread() - Binary-safe file read
  • fopen() - Opens file or URL
  • popen() - Opens process file pointer
  • fsockopen() - Open Internet or Unix domain socket connection
  • fgets() - Gets line from file pointer



fgetcsv> <fflush
[edit] Last updated: Sat, 12 May 2012
 
add a note add a note User Contributed Notes fgetc
sfinktah at php dot spamtrak dot org 22-Mar-2011 06:33
To read a single key-press in CLI mode, you can either use ncurses (which will probably require additional modules for PHP) or get nasty with the *nix "/bin/stty" command)

<?php
  
function stty($options) {
     
exec($cmd = "/bin/stty $options", $output, $el);
     
$el AND die("exec($cmd) failed");
      return
implode(" ", $output);
   }

   function
getchar($echo = false) {
     
$echo = $echo ? "" : "-echo";

     
# Get original settings
     
$stty_settings = preg_replace("#.*; ?#s", "", stty("--all"));

     
# Set new ones
     
stty("cbreak $echo");

     
# Get characters until a PERIOD is typed, 
      # showing their hexidecimal ordinal values.
     
printf("> ");
      do {
        
printf("%02x ", ord($c = fgetc(STDIN)));
      } while (
$c != '.');

     
# Return settings
     
stty($stty_settings);
   }

  
getchar();
?>
alex at alexdemers dot me 11-May-2009 10:30
The best and simplest way to get input from a user in the CLI with only PHP is to use fgetc() function with the STDIN constant:

<?php

echo 'Are you sure you want to quit? (y/n) ';
$input = fgetc(STDIN);

if (
$input == 'y')
{
    exit(
0);
}

?>
ktraas at gmail dot com (Kevin Traas) 23-Mar-2009 07:08
I was using command-line PHP to create an interactive script and wanted the user to enter just one character of input - in response a Yes/No question.  Had some trouble finding a way to do so using fgets(), fgetc(), various suggestions using readline(), popen(), etc.  Came up with the following that works quite nicely:

$ans = strtolower( trim( `bash -c "read -n 1 -t 10 ANS ; echo \\\$ANS"` ) );

 
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