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PHP - Return Longest Paragraph
Hiya!
I have a file (see attached) that contains basic HTML for a page with multiple paragraphs. How do I check the length of each paragraph to find out if it is 30 characters or over? If the first paragraph is not equal to 30 characters, then it should move on to the next one, and so on. If a paragraph is found to be the correct length, I then need to extract the text from the <p> tags. If a none of the paragraph match 30 characters in length, then the code will need to choose the best length paragraph. Any help is greatly appreciated. Many Thanks, FishSword Similar TutorialsHi I've written a function which should reference a couple of arrays, and return an array of the length of the longest value in the arrays. Confused, let me explain some more. Code: [Select] <?php function getLongest($records,$headers){ foreach ($headers as $fieldid){ foreach($records as $recordid){ $length[]=strlen(getContent($fieldid,$recordid)); } $result[$fieldid]=max($length); } return $result; } ?> I pass in 2 arrays, the first ($records) being references to the record id's from my DB, the second ($headers) is the column from my DB table where I pull the record info from. I have another function getContent which cross references these 2 values and gets the actual data (this works fine) I am trying to create an array of every content entry for each heading, then iterate through it and find the longest value. Then return an array of heading reference against longest content length. My content varies between 10 characters to a couple of hundred characters long, dependant on the column. I have approx 3000 entries in the DB. The results I'm getting are just not what I'd expect, i.e, I run the function against columns showing longtitude and latitude of locations, (expect the result to be approx 12 for the longest) but I get 38?!?! I've even tried using trim() with it incase there's any leading / trailing whitespace. Any thoughts? I have a really weird thing that I have to do, and I can't figure it out. I've tried about 1 million nested loops, and just can't get this to work. What I need to do is get the longest number from a string. So, for example, take the following: $string = "asdfasd234kjljlkjlj34659823423sadfasdadasdfasdfas d3242sdasddsda2"; function getNumber($a) { //do something with $string and return the longest number from it } so that ... echo getNumber($string); will return '34659823423' Thanks in advance, fellas! I've really been racking my brain there. Hello $row[longdescription] contains a description of a product (complete with HTML mark-up). I would like to display the first 250 characters in the results of a search. I would also like to remove any images that may crop up. This is what I have so far... Code: [Select] echo strip_tags(html_entity_decode(substr(preg_replace('/<img[^>]*>/Ui', '', $row[longdescription]), 0, 250))); The thing is (as you guys can probably already see), it also counts the HTML mark-up as characters and I get very different outputs (especially if an image occurs). I'd appreciate if you could advise me as to the correct way of doing this. Thank you From what I understand we can use ucfirst to convert the first letter within a string to upper case. What I would like to know is if there is a function that exists that would convert the first letter of every paragraph to upper case. For example: From: Code: [Select] This is a paragraph. is this the car blue? let's go for a pint of beer! To: Code: [Select] This is a paragraph. Is this the car blue? Let's go for a pint of beer! Does any such function exist? return (int) $value VS return $value
What is the purpose of using int in a bracket? return (int) $value
Which is the best and safest method?
Thank you
Hi Everyone,
My name is Raoul Grosser, live in The Netherlands.
I'm a front/backend developer working with AngularJS and Bootstrap and Symphone2.
I've been writing PHP code for over 4 years now my focus is on opensource projects.
If you have any question, please let me know!
Hello First of all i am very weak about OOP and classes in php. I am learning now but i stuck with very silly problem. My codes are below. <?php class myTestClass { function __construct() { $this->OldName("This is Old Name"); } function OldName($VeryOld) { if($VeryOld == "This is Old Name") $this->NewName(); else $VeryOld = "Something Wrong"; return $VeryOld; } function NewName() { echo "This is Brand New Name"; } } $i = new myTestClass(); ?> if i send value to OldName "This is Old Name" then codes works fine. But if i send "This is Old Nameeee" then does not appear anything. what i want to do is print "Something Wrong" text if i enter different value. I have no idea what return do and how it do? How to retrieve/print "Something Wrong"? i can do that with echo but i want to transfer result of return to another function. Really appreciate for any help/idea. Hey all. My site has a config database table that has a column showlogin to set whether or not login functionality is enabled. I'm playing around with MySQLi, Classes, and Returns. My return is always 1. Where am I going wrong? test.php <?php // Start Session session_start(); // Production Settings ini_set('display_errors', 1); mysqli_report(MYSQLI_REPORT_ALL); include 'db.php'; $mysqli = new mysqli($host, $user, $pass, $db); class styles { function showlogin($show) { global $mysqli; $select = $mysqli->query("SELECT showlogin FROM config LIMIT 1"); $value = $select->fetch_object(); if ($value->showlogin = 1) { return 1; } return 0; } } $login = new styles(); echo $login->showlogin($show); ?> If a user is on Page X, but not logged in, when they log in to my website, I want them to return back to Page X (in this example). To handle this, I am adding this code to the top of each webpage... Code: [Select] // Set current Script Name. $_SESSION['returnToPage'] = $_SERVER['SCRIPT_NAME']; And then as part of my Log In script I have... Code: [Select] // Redirect User. if (isset($_SESSION['returnToPage'])){ header("Location: " . BASE_URL . $_SESSION['returnToPage']); }else{ // Take user to Home Page. header("Location: " . BASE_URL . "index.php"); } What do you think about this approach? Thanks, Debbie Hi, I have setup my paypal payment method for a shopping cart on my site, all is well but in order for my server to flag an invoice as paid, the user must return to my website after paying and the query string in the url give the script the go ahead to mark it as paid which in turn alerts the appropriate department that its ok to source the order. ~The problem is, if the user for whatever reason skip the redirect back to my site, the invoice is remain 'unpaid' and has to be changed manually when the payment has been checked in the account. As you might imagine this is a bit of a problem because not only can it cause quite a delay, it also requires manually changing values which can lead to other problems. So if there is a better way i would appreciate the info, thanks a lot. Script:
<?php
class Article{
public function fetch_all(){
global $pdo;
$query = $pdo->prepare("SELECT * FROM `articles` ORDER BY `article_timestamp` DESC");
$query->execute();
return $query->fetchAll();
}
public function fetch_data($article_id){
global $pdo;
$query = $pdo->prepare("SELECT * FROM `articles` WHERE `article_id` = ?");
$query->bindValue(1, $article_id);
$query->execute();
return $query->fetch();
}
/*
* These have gotten added later on.
*/
public function delete($id){
global $pdo;
$query = $pdo->prepare("DELETE FROM `articles` WHERE `article_id` = ?");
$query->bindValue(1, $id);
$query->execute();
// The "return" here.
}
public function edit_page($title, $content, $aticle_id){
global $pdo;
$query = $pdo->prepare("UPDATE `articles` SET `article_title` = ?, `article_content` = ? WHERE `article_id` = ?");
$query->bindValue(1, $title);
$query->bindValue(2, $content);
$query->bindValue(3, $article_id);
$query->execute();
// The "return" here.
}
}
?>
I have this from a tutorial. In the function "fetch_all()" it uses "fetchAll()" at the spot where the "return" is, and in the function "fetch_data()" it uses "fetch()" at the spot where the "return" is.
My Question:
What may have to use for the function "delete()" and the function "edit_page()" at the spot where "return" would be?
Edited by glassfish, 29 October 2014 - 12:32 PM. Where should I validate the return value?
In the function should I validate the value before returning it.
Or once the value has been returned, should I check it?
Is it really necessary to validate the return value?
Thank you.
Say I have my login form which then when person tries to log in with the wrong user name and password and sent straight back to the log in page, how do I send back they got the password and/or username wrong. I read somewhere in some code header("location: index.php&$errorvariable"); or something like that. I haven't tested it, not even sure how to get it to work on the index, would I just use an isset on a get/post to check if it exists then echo the error? How to do that when you turn 360 degrees no longer come back? Only in this way was? Why it's print -2.8421709430404E-14; <?Php function getDiscount() { $discount = 100; return (245/100) * $discount; } echo 245-getDiscount(); ?> Hi all, I am kinda stuck on the return() statement in the php.net manual about control structures. (http://au.php.net/manual/en/function.return.php) All I see is notes on when not to use it and some scary examples with loads of foo and bar but, it's hard to find out when it would be nice to use it. At the moment i am thinking its another way of echo, but I bet that's wrong. If someone could enlighten me a bit on when return() is useful I would be very happy since i see it more often everyday. CHeers! I have a form page (referred to as form.php) which is then processed via a submit button, the script then processes the data from the form.php and if it discovers an error it then sets a variable containing the error message my process page contains Code: [Select] if (empty($b_addr)) { $b_addr_error = "Address is required"; $check_failed = TRUE;} header("Location: form.php"); then my form.php contains Code: [Select] $b_addr_error = safe($_GET['b_addr_error']); if (isset($_POST['$b_addr_error'])) { echo "<div class='errorfont' align='center'>'".$b_addr_error."';</div>"; } but the variables do not get passed back to form.php from the process page, any ideas? Thank you. Hello again. I use echo "Rating:".$json['Rating]."/10"; and get in return: 7.5/10 - it's ok. But I want to replace 7.5 with 75.png (image), 6.3 with 63.png, 9.4 with 94.png... hope u understand. Know someone how I can do this? Thanks. Hey, I've not used PHP for a while and never really used classes! I was reading some code today and I saw a statement something like: Code: [Select] $s = &MyClass::("Something"); From reading the PHP Manual it has an example which looks like this for 5.3, however my server still uses 5.2 (.9), how do I do similar using that? Preferably something along these lines... Code: [Select] class spook{ function __construct($n){ if($n==1){ return "hello"; } else { return "goodbye"; } } } $a=spook::(); print $a; Cheers! i.e. What was the old method before the Scope resolution operator? I am trying make my code display different things depending on how many rows are returned This is my code Code: [Select] <?PHP include 'db_con.php'; $month = date("n"); $day = date("j"); $sql = mysql_query("SELECT * FROM table WHERE month = $month AND day = $day ")or die(mysql_error()); while($row = mysql_fetch_array($sql) ) if (mysql_fetch_array($row = 1 ) ) ///THIS IS AN ERROR BUT IF ONE ROW RETURNED THEN THIS { echo "ONE THING"; } elseif (mysql_fetch_array($row >1 ) )////IF > 1 ROW RETURNED THAN THIS { echo"TWO THINGS"; } else { echo "SOMETHING ELSE "; } ?> I have tried several variations of the above code but cannot get it to work. Thanks for any help anyone can give me. |
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