1--TEST-- 2ftruncate() tests 3--FILE-- 4<?php 5 6$filename = __DIR__."/ftruncate.dat"; 7 8file_put_contents($filename, "some test data inside"); 9 10$fp = fopen($filename, "r"); 11var_dump(ftruncate($fp, 10)); 12fclose($fp); 13var_dump(file_get_contents($filename)); 14 15$fp = fopen($filename, "w"); 16var_dump(ftruncate($fp, 10)); 17fclose($fp); 18var_dump(file_get_contents($filename)); 19 20file_put_contents($filename, "some test data inside"); 21 22$fp = fopen($filename, "a"); 23var_dump(ftruncate($fp, 10)); 24fclose($fp); 25var_dump(file_get_contents($filename)); 26 27$fp = fopen($filename, "a"); 28var_dump(ftruncate($fp, 0)); 29fclose($fp); 30var_dump(file_get_contents($filename)); 31 32file_put_contents($filename, "some test data inside"); 33 34$fp = fopen($filename, "a"); 35try { 36 var_dump(ftruncate($fp, -1000000000)); 37} catch (\ValueError $e) { 38 echo $e->getMessage() . \PHP_EOL; 39} 40fclose($fp); 41var_dump(file_get_contents($filename)); 42 43@unlink($filename); 44 45?> 46--EXPECT-- 47bool(false) 48string(21) "some test data inside" 49bool(true) 50string(10) "����������" 51bool(true) 52string(10) "some test " 53bool(true) 54string(0) "" 55ftruncate(): Argument #2 ($size) must be greater than or equal to 0 56string(21) "some test data inside" 57
