Create visitor_counter.php
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33
visitor_counter.php
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33
visitor_counter.php
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<?php
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define("COUNTER_START_VALUE", 0);
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define("COUNTER_LOG", "visit_counter.log"); //name of file you want to use to save the counter value
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/*************************************************************************************************/
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function IncrementCounter()
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{
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$create_file = !file_exists(COUNTER_LOG);
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if( !($fh = fopen(COUNTER_LOG, $create_file ? "x+b" : "r+b")) )
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return "Error";
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//do an flock here, maybe, I don't know :-)
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//Reading current value of counter:
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if($create_file)
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$count = COUNTER_START_VALUE;
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else
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{
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$count = (int)fread($fh, 9); //reads 9 digits (supposing max 1 billion count)
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rewind($fh);
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}
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//Writing new counter value:
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if(!fwrite($fh, ++$count))
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return "Error";
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if(!fclose($fh))
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return "Error";
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return str_pad($count, 9, '0', STR_PAD_LEFT);
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}
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?>
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