rb);if($fp){echo open ok;}else{echo error;}while (!feof($fp)
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simple functions <?php $docRoot = $_SERVER['DOCUMENT_ROOT']; //readfile($docRoot."/orders/order.txt"); //do not need fopen unlink($docRoot."/orders/order.txt"); $fp = fopen($docRoot."/orders/orders.txt",rb); if($fp){ echo "open ok"; }else{ echo 'error'; } while (!feof($fp)){ echo fgetc($fp); } //fpassthru($fp); //out put string needs fopen //$len = fwrite($fp,'12345',3); rewind($fp); fseek(); fclose($fp); //file_put_contents($docRoot/orders/order.txt,'123',FILE_APPEND); Examples <?php // create short variable name $document_root = $_SERVER['DOCUMENT_ROOT']; ?> <!DOCTYPE html> <html> <head> <title>Bob's Auto Parts - Customer Orders</title> </head> <body> <h1>Bob's Auto Parts</h1> <h2>Customer Orders</h2> <?php @$fp = fopen("$document_root/orders/Book1.csv", 'rb'); flock($fp, LOCK_SH); // lock file for reading if (!$fp) { echo "<p><strong>No orders pending.<br /> Please try again later.</strong></p>"; exit; } while (!feof($fp)) { $order= fgets($fp); echo htmlspecialchars($order)."<br />"; } flock($fp, LOCK_UN); // release read lock echo 'Final position of the file pointer is '.(ftell($fp)); echo '<br />'; rewind($fp); echo 'After rewind, the position is '.(ftell($fp)); echo '<br />'; // while (!feof($fp)) { // // $s= fgetcsv($fp,9,','); // echo "<pre>"; // var_dump($s); // } if(is_null($s)) { echo 'null'; } fclose($fp); ?> </body> </html>PHP Files functions
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原文地点：https://www.cnblogs.com/luoxuw/p/12230428.html
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