Crude PHP Counter

[j0k3r]

I'm trying to build a PHP counter (not very good, but it'll do the job) and can't figure out what's going wrong. Basically it reads the number (what the counter is at) from a text file and increments it, puts it to the screen, writes the updated number back to the text file and closes it.

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<?php/*source of file*/$filename = 'current.txt';/*open the file (r+ for read+write)*/$fp = fopen($filename,'r+');/*read the file and store it in $currentval (1 line)*/$currentval = fread($fp, filesize($filename));/*increment the value (because it's a counter)*/$currentval++;/*write it to the screen*/echo $currentval;/*write the incremented value to the source file*/fwrite ($fp, $currentval);/*close the file*/fclose ($fp);?>




No errors are generated from the code, and it just seems as though fwrite() isn't working (I'm probably not using it properly). Online Function Reference at: http://ca.php.net/function.file

[j0k3r]

I tried uploading, and it worked sort of, ended up fixing it eventually... For those interested:

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<?php$filename = 'current.txt';   /*source of file*/   $fp = fopen($filename,'r+');   /*open the file (r+ for read+write)*/   flock($fp, 2);         /*lock the file*/   $currentval = fread($fp, filesize($filename));   /*read the file and store it in $currentval (1 line)*/$currentval++;               /*increment the value (because it's a counter)*/   echo $currentval;      /*write it to the screen*/fseek($fp,0);         /*go to beginning of file*/   fputs ($fp, $currentval);   /*write the incremented value to the source file*/   flock($fp, 3);         /*unlock the file*/   fclose ($fp);         /*close the file*/   ?>