note 89027 deleted from function.ftell by danbrown

From: Date: Wed, 18 Feb 2009 19:28:01 +0000
Subject: note 89027 deleted from function.ftell by danbrown
References: 1  Groups: php.notes 
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Note Submitter: johnston-dot-joshua at gmail dot com ---- RE: append-only streams My testing shows that ftell always reports 0 when you first open a file regardless of the mode it was opened in. If open a file in append mode (a) and you want ftell to report the actual position in the file instead of the position relative to where you entered you can use fseek <?php // create a test file with 100 bytes in it $file = 'temp.log'; $fp = fopen($file, 'w'); fwrite($fp, str_repeat('+', 100)); fclose($fp); // append mode to show fseek $fp = fopen($file, 'a'); echo ftell($fp), PHP_EOL; // reports 0 even though you are at char 100 fseek($fp, 0, SEEK_END); // seek to end (does nothing on append streams) echo ftell($fp), PHP_EOL; // reports 100 fwrite($fp, str_repeat('+', 100)); echo ftell($fp), PHP_EOL; // reports 200 ?>

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