General Error..: fread(): Length parameter must be greater than 0
2009.11.14 10:26
November 14, 2009 - This error message happened before also. Warning: fread() [function.fread]: Length parameter must be greater than 0 in /home/snucmaa/public_html/snumc1965/bbs/lib.php on line 1000 This error was cleared (in the case of www.snucmaa.us) by removing the last empty line at the "public_html/snumc1965/bbs/lib.php" This can happen to all other php files. The fololowing is the solution. There are many other solutions too. Symptom: Warning: Cannot modify header information - headers already sent by (output started at /....includes/something/something/something.php:12) in ..../includes/something_else.php on line 67 Common Cause: This warning is often caused by a blank space or extra line at the beginning or end of a .php file. Check the error for the filename that generated the error (ie: the "output started at...." filename), open that file in your text editor and remove the extra spaces or lines immediately before the first Other Causes: Syntax errors In the example above, you'll see output started at /....includes/something/something/something.php:12. The includes/something/something/something.php is the filename you need to be concerned about. The :12 means that the problem you need to fix is on line 12. In that same example, the /includes/something_else.php on line 67 message can be completely ignored. It is not the problem. It is the one that discovered that the problem had already occurred. If the "headers already sent" error appears AFTER any other error, then you need to fix that other error FIRST. (The error message itself is what caused headers to be sent, so fixing that error will cause the second error to go away too.) Summary: a) look for where it 'started at' b) track the line number c) check what's normally happening on that line. --- If it's the end of the file, then it's blank spaces. --- If it's the start of the file, it's likely spaces. --- Elsewhere it could be a syntax error or the result of an "echo()" statement which is displaying info or perhaps debug code. --- Common syntax errors include the use of single-quotes inside statements that already have single-quotes. Check to be sure your quotes aren't mismatched. If you need to use single-quotes while inside other single-quotes, change yours to \' instead of just '. d) the rest of the info simply shows other execution information, mainly the part of the code that discovered that it cannot proceed as expected due to the problem that happened in the 'started at' location. |
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