 Php Writes Into Txt File, a question |
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 Jul 17 2006, 04:34 PM
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#1
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Member [Level 1]  Group: Members Posts: 52 Joined: 17-July 05 From: hong kong Member No.: 9,520  |
QUOTE <?php $fp=fopen("test.txt","a"); fputs($fp,"ok"); ?> The above method is only to add "ok" at the end (DO NOT write on a new line) I want to know... How to add data on a new line and at the end of txt file??! thx~ |
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Jul 17 2006, 07:29 PM
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#2
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Incest is a game the whole family can play.  Group: [MODERATOR] Posts: 1,223 Joined: 11-February 05 From: Heaven Member No.: 3,709 |
It would be :
CODE <?php $fp = fopen ("test.txt", "a"); fputs ($fp, "ok \nnewline"); ?> So yeah, basically, you just add \n but the one things I've found is that the \n must be in " NOT ' |
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Jul 18 2006, 02:28 AM
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#3
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Define:EVIL PROGRAMMER (ē'vəl prō'grăm'ər)- n. An organism that converts caffeine into evil software. Group: [HOSTED] Posts: 1,074 Joined: 25-September 05 From: Los Angeles, California Member No.: 12,251 |
I have even noticed that in php strings can acctualy have a real carrage return! Instead of the \n u can just make the string on two lines! Sorta figured that one out on accident.
Example: CODE <?php
$fp = fopen ("test.txt", "a"); fputs ($fp, "ok newline"); ?> This post has been edited by galexcd: May 13 2008, 03:31 AM |
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Jul 18 2006, 06:36 AM
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#4
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Premium Member Group: Members Posts: 162 Joined: 10-May 06 Member No.: 23,375 |
Here is a better File writing function :
CODE <?php $filename = 'test.txt'; $somecontent = "Add this to the file\n"; // Let's make sure the file exists and is writable first. if (is_writable($filename)) { // In our example we're opening $filename in append mode. // The file pointer is at the bottom of the file hence // that's where $somecontent will go when we fwrite() it. if (!$handle = fopen($filename, 'a')) { echo "Cannot open file ($filename)"; exit; } // Write $somecontent to our opened file. if (fwrite($handle, $somecontent) === FALSE) { echo "Cannot write to file ($filename)"; exit; } echo "Success, wrote ($somecontent) to file ($filename)"; fclose($handle); } else { echo "The file $filename is not writable"; } ?> Also you should use the \n thing to hit enter in a file. But i dont think so it is necessary to put it in "" double quotes rather than single quotes . Best of luck |
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Jul 18 2006, 02:29 PM
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#5
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Member [Level 1] Group: Members Posts: 52 Joined: 17-July 05 From: hong kong Member No.: 9,520 |
..thx a lot~~
successful! |
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Jul 19 2006, 04:23 AM
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#6
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Premium Member Group: Members Posts: 162 Joined: 10-May 06 Member No.: 23,375 |
You can also find a way to modify a existing file to change some of its values.
e.g. If you have a global file that controls all your site settings and would like to modify it via the Admin Center you can use str_repalce function to do so. It is very effective for users. Good luck |
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Jul 19 2006, 04:10 PM
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#7
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Proud to be hosted Group: Members Posts: 992 Joined: 11-July 04 From: NL Member No.: 75 |
Thanks electron for the nice and very good usable PHP script, keep them coming
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Jul 20 2006, 02:54 AM
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#8
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Premium Member Group: Members Posts: 162 Joined: 10-May 06 Member No.: 23,375 |
What type of code or function do youy want ?
I can help you. By the way you can also use preg_replace() fucntion if you are not so sure of the TEXT MATTER but no the Format of it e.g. a Hyperlink. But if you know the text then its advisable to use str_replace() function. Also for inserting any kind of quote - single or double - use a backslash to write it in the file. I love PHP |
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Jul 20 2006, 03:15 PM
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#9
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Privileged Member Group: Members Posts: 873 Joined: 30-July 04 Member No.: 246 |
A like PHP. I wouldn't go so far as to say I love it.
Just a little expansion and clarification. preg_replace() uses the Perl-compatible regular expression engine built into PHP (as do all preg_ functions) to perform a regex search and replace operation on a given string, where the subject is searched for a pattern matching that given and replaced with the specified replacement (which can contain backreferences to the pattern matched). str_replace() is just a very simple static search and replace function for strings, where it replaces all given instances of one string within another with a specified value. preg_replace() is so much more powerful due to its harnessing PCRE - however, this means it is also slower, and should not be used unless required. Quotes only need to be escaped when that exact character is being used as a string delimiter. For instance, the string 'a"b"c' is perfectly legal, without the double quotes being escaped, as single quotes are acting as string delimiters - however, were the double quotes single quotes instead, they would need to be escaped, for example: 'a\'b\'c'. Within single quotes, no other characters will ever be escaped other than single quotes - so '\n' remains just that, whereas "\n" is the equivalent of chr(10) (and "\r" the equivalent of chr(13)). Variables will also be substituted within double quotes - eg. "the value is $variable" will become "the value is x" (assuming x is the value of the variable $variable - if that makes any sense at all). Because of these two factors, it is better to use single quotes where possible, even if this means concatenating strings delimited via two different sets of quotes (eg. 'start' . "\n" . 'end'), as it will always be faster. Although the speed difference generally isn't noticable, it can begin to slow down if large amounts of text is being processed, or if it is happening in rapid succession (eg. the code behind a very popular website), and it's simply a good programming practice to write clean, fast and efficient code. So anyway, that's my two and half cents worth. |