function gzfile_get_contents($filename, $use_include_path = 0)
{
//File does not exist
if(!@file_exists($filename)) {
return false;
}
//Read and imploding the array to produce a one line string
$data = gzfile($filename, $use_include_path);
$data = implode($data);
return $data;
}
//scriviamo il risultato in un file
file_put_contents('punto.txt', gzfile_get_contents('punto.txt.gz'));
System.Collections.Hashtable
Rappresenta un insieme di coppie chiave/valore organizzate in base al codice hash della chiave.
using System;
using System.Collections;
class Example
{
public static void Main()
{
Hashtable htTest = new Hashtable();
htTest.Add("txt", "notepad.exe");
htTest.Add("bmp", "paint.exe");
htTest.Add("dib", "paint.exe");
htTest.Add("rtf", "wordpad.exe");
try
{
htTest.Add("txt", "winword.exe");
}
catch
{
Console.WriteLine("Un elemento con 'Key' = 'txt' esiste gia.");
}
Console.WriteLine("Per la 'key' = 'rtf', 'Value' = {0}.", htTest["rtf"]);
htTest["rtf"] = "winword.exe";
Console.WriteLine("Per la 'key' = 'rtf', 'Value' = {0}.", htTest["rtf"]);
htTest["doc"] = "winword.exe";
if (!htTest.ContainsKey("ht"))
{
htTest.Add("ht", "hypertrm.exe");
Console.WriteLine("Valore aggiunto con 'key' = 'ht', 'Value' = {0}", htTest["ht"]);
}
Console.WriteLine();
foreach( DictionaryEntry de in htTest )
{
Console.WriteLine("'Key' = {0}, 'Value' = {1}", de.Key, de.Value);
}
ICollection valueColl = htTest.Values;
Console.WriteLine();
foreach( string s in valueColl )
{
Console.WriteLine("'Value' = {0}", s);
}
ICollection keyColl = htTest.Keys;
Console.WriteLine();
foreach( string s in keyColl )
{
Console.WriteLine("'Key' = {0}", s);
}
Console.WriteLine("nRimuovo elemento con chiave = 'doc'");
htTest.Remove("doc");
if (!htTest.ContainsKey("doc"))
{
Console.WriteLine("L'elemento con chiave = 'doc' non esiste.");
}
}
}
Formattare i numeri con printf()
$number = 15;
printf("Decimal: %d", $number); //Decimal: 15
printf("Binary: %b", $number); //Binary: 1111
printf("Double: %f", $number); //Double: 15.000000
printf("Octal: %o", $number); //Octal: 17
printf("String: %s", $number); //String: 15
printf("Hex (lower): %x", $number); //Hex (lower): f
printf("Hex (upper): %X", $number); //Hex (upper): F