The simplest calculator:
<HTML>
<Head>
<Title> visitor counter prototype </title>
</Head>
<Body>
<? PHP
/*
(C) 1998 David W. Bettis
Here is the copyright information
*/
$ Counterfile = "counter.txt ";
# Here is the definition counter File
Function displaycounter ($ counterfile ){
$ Fp = fopen ($ counterfile, "RW ");
# Open a file and use the read/write Method
$ Num = fgets ($ FP, 5 );
# Obtain the current number
$ Num + = 1;
# Add 1
Print "you are the". "$ num". "bit boring ";
Exec ("RM-RF $ counterfile ");
Exec ("Echo $ num> $ counterfile ");
# The method of laziness. Do not use fputs for writing.
}
If (! File_exists ($ counterfile )){
Exec ("Echo 0> $ counterfile ");
} # If the recorder file does not exist, create it and set the content to 0.
Displaycounter ($ counterfile );
?>
</Body>
</Html>
PHP stenographer is relatively simple:
<?
# No copyright, so easy
$ Fp = fopen ("counter.txt", "R + ");
Flock ($ FP, 3 );
# Open the recorder file and lock it
$ Fsize = filesize ("count.txt ");
$ COUNT = fgets ($ FP, $ fsize + 1 );
$ Count ++;
# Obtain the digital and add one
Fseek ($ FP, 0 );
Fputs ($ FP, $ count );
Fclose ($ FP );
# Writing new digital data into a file
Echo "you are the $ count visitor ";
?>
PHP stenographer graphic version:
I will not elaborate on creating 10 images and concatenating numbers with pictures.
Fake image: 0.gif ~ 9. gif
<?
... $ Count is the obtained value.
$ Strcount = strval ($ count );
$ Strcount = chop ($ strcount );
$ Countlen = $ strlen ($ strcount );
$ Shtml = "";
For ($ I = 0; $ I <$ countlen; $ I ++ ){
$ Shtml. = "$ Shtml. = $ strcount [$ I];
$ Shtml. = ". gif '> ";
}
Echo $ shtml;
?>
PHP stenographer database version:
Use the SQL calculator to create a table first
Create Table counter
(
Counter int not null,
Id ���� int not null
)
Insert into counter (counter, ID) value (0, 1)
<?
$ Conn = mysql_connect (...,...,...);
# MySQL database connection
$ SQL = "select * from counter ";
$ Result = mysql_query ($ SQL, $ conn );
$ Objresult = mysql_fetch_object ($ result );
$ COUNT = $ objresult-> counter;
$ Count ++;
$ SQL = "update counter set counter =". $ count. "Where id = 1 ";
Mysql_query ($ SQL, $ conn );
Mysql_close ($ conn );
Echo "you are the $ count guest ";
?>
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