|
PHP - Reading And Writing To Specific Parts Of .txt
Is this possible? Could the following code be replaced with one .txt consisting of two digits?
Code: [Select] $myFile = "offerrotation.txt"; $myFile2 = "lprotation.txt"; $fh = @fopen($myFile, 'r'); $offerNumber = @fread($fh, 5); @fclose($fh); $fh = @fopen($myFile2, 'r'); $lpNumber = @fread($fh, 5); @fclose($fh); Many thanks Similar Tutorialsi have this script where the user enters their name and their favorite quotes. It adds their favorite quotes and their names to quotes.txt and prints out their name and their quotes on view_quote.php. I need to use a foreach() loop to print out the name and the quotes, but I'm confused about how to set it up. Here's my files. add_quote.php Code: [Select] <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <title>Add A Quotation</title> </head> <body> <?php // add_quote.php /* This script displays and handles an HTML form. This script takes text input and stores it in a text file. */ // Identify the file to use: $file = 'quotes.txt'; // Check for a form submission: if ($_SERVER['REQUEST_METHOD'] == 'POST') { // Handle the form. if ( !empty($_POST['quote']) && ($_POST['quote'] != 'Enter your quotation here.' ) ){ // Need some thing to write. if (is_writable($file)) { // Confirm that the file is writable. file_put_contents($file, $_POST['quote'] . PHP_EOL, FILE_APPEND | LOCK_EX); // Write the data. file_put_contents($file, $_POST['name'] . PHP_EOL, FILE_APPEND | LOCK_EX); // Print a message: print '<p>Your quotation has been stored.</p>'; } else { // Could not open the file. print '<p style="color: red;">Your quotation could not be stored due to a system error.</p>'; } } else { // Failed to enter a quotation. print '<p style="color: red;">Please enter a quotation!</p>'; } } // End of submitted IF. // Leave PHP and display the form: ?> <form action="add_quote.php" method="post"> <p>Name:<input type="text" name="name"/><br /> <textarea name="quote" rows="5" cols="30">Enter your quotation here.</textarea><br /> <input type="submit" name="submit" value="Add This Quote!" /> </form> </body> </html>view_quote.php Code: [Select] <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <title>View A Quotation</title> </head> <body> <h1>View My Quotes</h1> <?php // view_quote.php /* This script displays and handles an HTML form. This script reads in a file and prints a random line from it. */ // Read the file's contents into an array: $data = file('quotes.txt'); // Count the number of items in the array: $n = count($data); // Pick a random item: $rand = rand(0, ($n - 1)); // Print the quotation: print '<p>' . trim($data[$rand]) . '</p>'; ?> </body> </html>and the quotes.txt file is blank until the user enters their names and quotes. Im trying to get this done kind of quick so any help would be awesome. I'm trying to process MS words doc in PHP. I found some samples which use COM applications for this but not working properly (I get only exceptions and no result) and I taught it's the version of word on my localhost or my OS so I tried them on with different windows OS and MS word. but same result, since it would be harder to make it work on remote server (the remote server needs to have MS word installed on) so I'm looking for different approach, what you think?? is there nay good one rather than COM applications? have you ever tried? is it possible to write code with other like ASP or java and combine it with PHP? every little piece of advice would be appropriated, thanks Hey, I'm trying to work out how I can have a simple script that will work like this: Page 1 - Heading, Paragraph, Image read from database. Page 2 - Has text boxes allowing you to change heading, paragraph and image (url) with each edit using a different text box. (Admin panel) The database connection would be in a separate file. So far I've got the database connection sorted. Code: [Select] <?php //Database Information $dbtype = "mysql"; $db_host = "localhost"; $db_user = ""; $db_pass = ""; $db_name = ""; $db_port = ""; $db_table_prefix = "userCake_"; ?> At the top of each of the other pages this is what I've got. Code: [Select] <?php require_once("models/config.php"); ?> Let's say I give each bit stored in the database a page ID and an object ID. If the page selected is index.php how can we give it a page ID of 1 and give then include all the separate 'objects' throughout the page? Hopefully this makes sense? Cheers, Jack I am creating a poll with a form using check boxes. The resulting associative array is evaluated and 1 is to be added to values selected. I have that part down. I want to write the associative array to a file and the next time someone uses the form the values are read from the file, values added and then write it back to a file. I thought it would be better to do it like this rather than query a db, add values, etc. Any ideas on how to do this? This is the array I want to start with: Code: [Select] $vetservice = array( "Korea"=>0, "Vietnam"=>0, "Grenada"=>0, "Cold War"=>0, "Panama"=>0, "Desert Storm"=>0, "Mogadishu"=>0, "OEF"=>0, "OIF"=>0 ); Values from the post array would be added to the starting value and wrote back to a text file. This topic has been moved to Third Party PHP Scripts. http://www.phpfreaks.com/forums/index.php?topic=346993.0 Hi
I come from a desktop (vb.net) background and have used oridinary text files for my databases. I use file locking to prevent other processes from writing to the same file simultaneously.
Now I am moving over the PHP/MySQL - what precautions should I take to stop a simultaneous processes from writing to a table at the same time.?
Do I need to lock the table before writing to it?
Does MySQL deal with this automatically and just block my process until the table becomes free?
(I am talking about a single table here, not multiple dependant tables - I know that is another issue)
Thanks
Nigel
Is there a simple way getting PHP to open a single file and write to a specific line? Like: fwrite (line = 102) {"bla bla bla"}; fclose; Hello All, Please excuse my lack of knowledge in advance, I'm a beginner but pick things up relatively quickly, and tend to do things by trial and error. I would appreciate any help that anyone could offer with the following: I would like to retrieve two pieces of data from a "text file" and use them to calculate a result from a function I have in javascript. An example of the javascript code is: <script type="text/javascript"> function calculate() { var drybulb = document.calc_form.drybulb.value; var relhum = document.calc_form.relhum.value; var answer = ''; if (drybulb !== '' && relhum !== '') { answer = (0.567*drybulb*1) + (0.393 * (relhum*1/100 * 6.105 * Math.exp(17.27 * drybulb / (237.7 + drybulb*1)))) + 3.94; } document.calc_form.answer.value = answer; return false; } </script> Currently this is evaluated with entry from a simple html form, but I would like to have this performed "automatically". The "text file" that I would like to access is here, not on my server: http://www.bom.gov.au/fwo/IDV60901/IDV60901.94870.axf I would like to extract the "air_temp" and "rel_hum" values under the [data] section for use in my function. I just need the "most recent" values (i.e. first), not all those contained in the file. This is a single record from that section (sorry for the mess this no doubt makes): [data] sort_order,wmo,name[80],history_product[80],local_date_time[80],local_date_time_full[80],aifstime_utc[80],air_temp,apparent_t,cloud[80],cloud_base_m,cloud_oktas,cloud_type[80],cloud_type_id,delta_t,dewpt,gust_kmh,gust_kt,lat,lon,press,press_msl,press_qnh,press_tend[80],rain_trace[80],rel_hum,sea_state[80],swell_dir_worded[80],swell_height,swell_period,vis_km[80],weather[80],wind_dir[80],wind_spd_kmh,wind_spd_kt 0,94870,"Moorabbin Airport","IDV60901","27/10:00pm","20120227220000","20120227110000",18.8,19.3,"Partly cloudy",510,3,"-",-9999,0.8,17.5,13,7,-38.0,145.1,1013.5,-9999.0,1013.5,"-","11.4",92,"-","-",-9999.0,-9999,"10","-","S",11,6 Would it be possible to obtain these values using PHP?, and if so any advice on how this could be done (noting my minimal knowledge) would be greatly appreciated. Cheers. does anyone know how to decode this XML variable value into string values? I also need to know the oposite way: creating variable values into xml. I've tried several code examples but they did filter the requested data. Code: [Select] $xml='<?xml version="1.0" encoding="utf-8"?> <elements> <text identifier="ed9cdd4c-ae8b-4ecb-bca7-e12a5153bc02"> <value/> </text> <textarea identifier="a77f06fc-1561-453c-a429-8dd05cdc29f5"> <value><![CDATA[<p style="text-align: justify;">Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.</p>]]></value> </textarea> <textarea identifier="1a85a7a6-2aba-4480-925b-6b97d311ee6c"> <value><![CDATA[<p style="text-align: justify;">Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.</p>]]></value> </textarea> <image identifier="ffcc1c50-8dbd-4115-b463-b43bdcd44a57"> <file><![CDATA[images/stories/red/cars/autobedrijf.png]]></file> <title/> <link/> <target/> <rel/> <lightbox_image/> <width><![CDATA[250]]></width> <height><![CDATA[187]]></height> </image> <text identifier="4339a108-f907-4661-9aab-d6f3f00e736e"> <value><![CDATA[Kramer 5]]></value> </text> <text identifier="ea0666d7-51e3-4e52-8617-25e3ad61f8b8"> <value><![CDATA[6000 RS]]></value> </text> <text identifier="90a18889-884b-4d53-a302-4e6e4595efa0"> <value><![CDATA[Eindhoven]]></value> </text> <text identifier="410d72e0-29b3-4a92-b7d7-f01e828b1586"> <value><![CDATA[APK Pick up and return]]></value> </text> <text identifier="45b86f23-e656-4a81-bb8f-84e5ea76f71f"> <value><![CDATA[15% korting op grote beurt]]></value> </text> <text identifier="3dbbe1c6-15d6-4375-9f2f-f0e7287e29f3"> <value><![CDATA[Gratis opslag zomerbanden]]></value> </text> <text identifier="2e878db0-605d-4d58-9806-8e75bced67a4"> <value><![CDATA[Gratis abonnement of grote beurt]]></value> </text> <text identifier="94e3e08f-e008-487b-9cbd-25d108a9705e"> <value/> </text> <text identifier="73e74b73-f509-4de7-91cf-e919d14bdb0b"> <value/> </text> <text identifier="b870164b-fe78-45b0-b840-8ebceb9b9cb6"> <value><![CDATA[040 123 45 67]]></value> </text> <text identifier="8a91aab2-7862-4a04-bd28-07f1ff4acce5"> <value/> </text> <email identifier="3f15b5e4-0dea-4114-a870-1106b85248de"> <value/> <text/> <subject/> <body/> </email> <link identifier="0b3d983e-b2fa-4728-afa0-a0b640fa34dc"> <value/> <text/> <target/> <custom_title/> <rel/> </link> <relateditems identifier="7056f1d2-5253-40b6-8efd-d289b10a8c69"/> <rating identifier="cf6dd846-5774-47aa-8ca7-c1623c06e130"> <votes><![CDATA[1]]></votes> <value><![CDATA[1.0000]]></value> </rating> <googlemaps identifier="160bd40a-3e0e-48de-b6cd-56cdcc9db892"> <location><![CDATA[50.895711,5.955427]]></location> </googlemaps> </elements>'; I need to add these lines to my .htaccess file via PHP Code: [Select] RewriteCond %{REQUEST_URI} checkout RewriteRule ^(.*)$ https://myurl.com/checkout/$1 [R,L] RIGHT after this line: Code: [Select] RewriteBase / AND before this line: Code: [Select] RewriteCond %{REQUEST_FILENAME} !-f This is how the current file looks w/o the new line addition: Code: [Select] RewriteEngine On RewriteBase / RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.+)$ index.php [L,QSA] It needs to look like this when the new lines are added(extra line breaks not necessary): Code: [Select] RewriteBase / RewriteCond %{REQUEST_URI} checkout RewriteRule ^(.*)$ https://myurl.com/checkout/$1 [R,L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.+)$ index.php [L,QSA] The line numbers may not match up, so I cannot use the line number. I use the Wholesale Suite Premium Prices plugin with WooCommerce. I have 6 specific wholesale roles out of 15 that I wish to hide two specific shipping methods from being selected for the 6 exceptions. I'm just trying this on my staging server at this time using a code snippet example that I found and modified for my specific conditions. Would the following work for this purpose?
/* Hide specific shipping methods for specific wholesale roles */
add_filter( 'woocommerce_package_rates', function( $shipping_rates ) {
// User role and shipping method ID to hide for the user role
$role_shipping_method_arr = array(
'ws_silvia_silver' => array( 'Silvia Premium Standard Shipping (Tracking Service)'),
'ws_silvia_silver_pst_exempt' => array( 'Silvia Premium Standard Shipping (Tracking Service)'),
'ws_silvia_silver_tax_exempt' => array( 'Silvia Premium Standard Shipping (Tracking Service)'),
'ws_silvia_silver' => array( 'Silvia Union Standard Shipping (Tracking Service)'),
'ws_silvia_silver_pst_exempt' => array( 'Silvia Union Standard Shipping (Tracking Service)'),
'ws_silvia_silver_tax_exempt' => array( 'Silvia Union Standard Shipping (Tracking Service)'),
'ws_silvia_gold' => array( 'Silvia Premium Standard Shipping (Tracking Service)'),
'ws_silvia_gold_pst_exempt' => array( 'Silvia Premium Standard Shipping (Tracking Service)'),
'ws_silvia_gold_tax_exempt' => array( 'Silvia Premium Standard Shipping (Tracking Service)'),
'ws_silvia_gold' => array( 'Silvia Union Standard Shipping (Tracking Service)'),
'ws_silvia_gold_pst_exempt' => array( 'Silvia Union Standard Shipping (Tracking Service)'),
'ws_silvia_gold_tax_exempt' => array( 'Silvia Union Standard Shipping (Tracking Service)'),
);
// Getting the current user role
$curr_user = wp_get_current_user();
$curr_user_data = get_userdata($current_user->ID);
// Wholesale Suite Roles
if (isset($current_user) && class_exists('WWP_Wholesale_Roles')) {
$wwp_wholesale_roles = WWP_Wholesale_Roles::getInstance();
$wwp_wholesale_role = $wwp_wholesale_roles->getUserWholesaleRole();
// Loop through the user role and shipping method pair
foreach( $role_shipping_method_arr as $role => $shipping_methods_to_hide ) {
// Check if defined role exist in current user role or not
if( in_array( $role, $current_user->roles) ) {
// Loop through all the shipping rates
foreach( $shipping_rates as $shipping_method_key => $shipping_method ) {
$shipping_id = $shipping_method->get_id();
// Unset the shipping method if found
if( in_array( $shipping_id, $shipping_methods_to_hide) ) {
unset($shipping_rates[$shipping_method_key]);
}
}
}
}
}
return $shipping_rates;
});
Any insights as to how to accomplish this would be greatly appreciated. Lyse so I have this code..........(not in brackets sorry) <table width="410" border="1" cellspacing="0" cellpadding="0"> <tr> <td width="339" bgcolor="#999999" scope="col">EVENTS</td> </tr> <tr> <td class="afasd"><?php echo date("F",strtotime("-0 month")); ?></td> </tr> <tr> <td><?php if ($startdate == date("F",strtotime("-0 month"))){ echo "<p><a href='viewevent.php?eventid=$eventid'>$startdate - $enddate --- $event</a></p>\r\n"; }else{ echo"there are no events scheduled for this month" ;} ?></td> </tr> <tr> <td class="adfaf"><?php echo date("F",strtotime("+1 month")); ?></td> </tr> <tr> <td><?php if ($startdate == date("F",strtotime("+1 month"))){ echo "<p><a href='viewevent.php?eventid=$eventid'>$startdate - $enddate --- $event</a></p>\r\n"; }else{ echo"there are no events scheduled for this month" ;} ?></td> </tr> <tr> <td class="jasdfjs"><?php echo date("F",strtotime("+2 month")); ?></td> </tr> <tr> <td><?php if ($startdate == date("F",strtotime("+2 month"))){ echo "<p><a href='viewevent.php?eventid=$eventid'>$startdate - $enddate --- $event</a></p>\r\n"; }else{ echo"there are no events scheduled for this month" ;} ?></td> </tr> </table> so Only the third piece is working displaying correct things...........the other two don't display at all....... Hi I want to hide the login box's of my webpage once you login. I have thought of two ways of doing it but which one would you say is better practice? 1. use a PHP if statement to echo 'Display: none on css' - when viewing source code it still shows the form but not displayed on page itself 2. use a PHP if statement around the whole <form></form> so it physically doesnt write the html if already logged in? Or if anyone has a better way it would be appreciated if you would share it? Thanks in advance hello guys
i wand to split the 24h of a day to parts and select the time that i wand to start the 24h circle to count!
lets say
i give 2 int variables
$day_starts_to_count_from=00;
$split_day_to_parts=4;
so!
$hours_per_part = 24/$split_day_to_parts;
this gives me $hours_per_part = 6 (i split the 24h every 6hr)
how to know the part of my current hour?
lets say the system time is 15:35
how to find that im at the 3d part 12:00-18:00 if the 24h circle starts to count from 00:00
thanks in advance
Hi all,
I would like some input on database structure for a website that will sell car parts. Necessary fields a
Manufacturer
Part type (eg: exhaust, brakes, engine etc)
Part number
Description
Year & make of vehicle it fits (may need to be separate fields, I don't know, this is my main conundrum) **
Keep in mind, this is a basic example and purely hypothetical at this moment. I haven't done any coding yet.
My main roadblock at the moment is figuring out how to engineer part compatibility in conjunction with a search. Many parts fit many different vehicles. For example, part A123 could fit:
1999-2004 Jetta 2.0
1999-2004 Golf 2.0
1999-2004 Passat 1.9
In your opinion, what would be the most efficient way to store and retreive matching parts? Would I have each model as a separate row? i.e:
row 1: 2002-2004 Jetta ... part A123
row 2: 1999-2004 Golf... part A123
row 3: 1999-2004 Passat... part A123
Basically I would have many duplicate rows where only the year and vehicle model changes. This would definitely work, but would eventually lead to a very large and messy database.
There are already companies that offer a service such as this, but I am looking at looking to sell less products and secondly, in a different language. At the moment, I'm trying to figure out the best way that I could do it. Once I have an idea in mind, then I can decide whether I want to go ahead with that or use a pre-made commercial platform.
I have a database full of strings which are basically URL's with ports, so by default my strings look like: http://example.com:1234/ http://example2.com:3030/ http://example.com:9876/ http://example.com:5432/ What I am looking for is a way to separate the host from the post so the output would be something like: Host: example.com Port: 1234 Note: I once need to check one string at a time, so what I am after is something like: $string = "http://example.com:1234/"; And the result would be something like: $host (would be example.com without http://) $port (would be the port without ending /) Any help would be great Thanks for your time reasing this. Hi, Everyone! I have an issue and I'm not even sure if it can be done with PHP, but even this info would help me (to stop looking for an answer). I need to populate a (MySQL) database with stuff which is now written in a (HTML formatted) file. Here are my options: 1. Copy/paste each single field via PHPMyAdmin . 2. Write a little script to extract the necessary parts of text from these files to create a CSV-like content which I would then easily INSERT into the db. Example The files look like this: Code: [Select] <!-- SEPARATOR (same throughout the file(s) --> <tr><td> <div style="something"><img src="img/what_i_need_to_extract_1.png"></div> </td><td> <div style="something else"><b>What I need to extract 2</b></div> <div style="something else">What I need to extract 3</div> </td></tr> <!-- SEPARATOR (same throughout the file(s) --> etc ... and it goes like... 100 times in each file in the same standard pattern with the "What I need to extract" parts being completely different each time. Since it's possible to tell when each part required for extraction begins and ends, I would expect the script to look for these key-points (according to the example, it would be: img/ to "></d then "><b> to </b>< and else"> to </div>) and return a result like this (acc. to the example): ('what_i_need_to_extract_1.png', 'What I need to extract 2', 'What I need to extract 3'), (and so on...). Is it possible? Is there a function/option/way to look for a start/end-point like this and fetch the part between these two set points? If so - how? Any help would be appreciated, I'm not expecting a full code, obviously, just a point to the right direction or where to look at would be nice. Thanks in advance. |
|||||||