PHP Visitor counter

1
PHP Visitor counter

• Similar to doing a counter using Perl
• Store visitor count in a text file
• Read the visitor count from the file
• Increment the visitor count by 1
• Display the visitor count
• Write back the visitor count to the file
• ? set appropriate read/write permissions

2
PHP Fancy Visitor counter

• Similar to doing a fancy counter using Perl
• Same as regular counter, and
• Display the digits in color
• Or
• Display a gif for each digit

3
PHP Fancy Visitor counter

• Need to assess number of digits in visitor count
  so that we can loop through them
• count 34589 // 5 digits
• // strlen( string )
• numberDigits strlen( count )

4
PHP Fancy Visitor counter

• Need to access each digit
• // substr( string, startIndex, numOfChars)
• digit substr( count, 2, 1 ) // 5
• Also
• // stringindex
• digit count2 // not supported by our
  version

5
PHP Fancy Visitor counter

• numDigits strlen( count )
• for( i 0 i lt numDigits i )
• // gifs are named 0.gif, 1.gif, 2.gif,
• temp substr(count, i, 1).".gif
• echo "ltimg src \"temp\"
• height 20 width 20gt"