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  • how to obtain the facebook uid of a user in php

    - by Eric
    Hey, I'm writing a canvas app for facebook. I use the command: $user_id = $facebook-require_login(); To get the userid, but at the first few pages of my app I don't want to require login, but if the user's logged in, I'd like to know what the userid is. Basically I need a "get_login()" command that perhaps returns 0 or null if the user is not logged in. Is there anything like that?

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  • PHP: Prevent a function from returning value?

    - by Industrial
    Hi everybody, How could I make sure that the startProcess(); function is being called, but without halting the execution for myFunction(). I'll guess that there's a way to call a function and prevent it from returning it's value to thereby accomplishing this? Pseudo-code: function myFunction() { startProcess(); return $something; } function startProcess() { sleep(5); // Do stuff that user doesn't should have to wait for. }

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  • PHP & MySQL Problem

    - by Fincha
    I Have a script, getting text from DB and post it on other DB. Problem is, if I have a Text lngen then 840 Words, I can't call this page. Get an error about "Not Found" or "Connection brocken" or what ever. In FF i get no error, only blank page. I found out the Problem is in lenght of the query i send... but how can i fix it??? My it be the Problem, if a query is longer then 6000 Characters?

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  • Strange PHP array behavior overwriting values with all the same values

    - by dasdas
    Im doing a simple mysqli query with code ive used many times before but have never had this problem happen to me. I am grabbing an entire table with an unknown number of columns (it changes often so i dont know the exact value, nor the column names). I have some code that uses metadata to grab everything and stick it in an array. This all works fine, but the output is messed up: $stmt -> execute(); //the query is legit, no problems there $meta = $stmt->result_metadata(); while ($field = $meta->fetch_field()) { $params[] = &$row[$field->name]; } call_user_func_array(array($stmt, 'bind_result'), $params); while ($stmt->fetch()) { $pvalues[++$i] = $row; //$pvalues is an array of arrays. row is an array //print_r($row); print_r($pvalues[$i-1]); } $stmt -> close(); I would assume that $pvalues has the results that I am looking for. My table currently has 2 rows. $pvalues has array length 2. Both rows in $pvalues are exactly the same. If i use the: print_r($row) it prints out the correct values for both rows, but if later on i check what is in $pvalues it is incorrect (1 row is assigned to both indices of $pvalues). If i use the print_r($pvalues[$i-1]) it prints exactly as I expect, the same row in the table twice. Why isnt the data getting assigned to $pvalues? I know $row holds the right information at one point, but it is getting overwritten or lost.

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  • purpose of php consutructor

    - by Bharanikumar
    Hi , Am working in the classes and object class structure , but not extream level , Just class and function , then in one place instantiation . that's it , not much big functions like __construct etc , Please tell me very simply , 1.what is th purpose of constructor ad destructor , But i know theoretical explanation school level , But i am expecting something like in real time , which situation we have to use, and is there any example for that please tell me, Regards

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  • Way to store dates with missing days/months in mysql (php)

    - by Paul M
    I want to store dates in mysql so I set the table to be of type 'Date', which is fine but mysql requires that the full date is provided YYYY-MM-DD. However some of my data does not include day and some is missing the month. Now I could just use a varchar(10) field, but then its difficult to run date based queries on the data. Is there another date format which is not as strong and would allow me to use ?? or 00 where the day/month is not known?

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  • PHP Pass by reference

    - by Salil
    I am calling this function which is modifying an array by reference: function addWord(&$words, $wordIndex, $word) { $words[$wordIndex] = $word; } At the function call, addWord(&$words, $wordsIndex, $word); ($words is used only during the function call) doesn't work. How do I make this or a similar functionality work? I want the addWord to be a separate function.

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  • Purpose of PHP constructors

    - by Bharanikumar
    Hi, I am working with classes and object class structure, but not at a complex level – just classes and functions, then, in one place, instantiation. As to __construct and __destruct, please tell me very simply: what is the purpose of constructors and destructors? I know the school level theoretical explanation, but i am expecting something like in real world, as in which situations we have to use them. Provide also an example, please. Regards

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  • [php] how to read only 5 last line of the txt file

    - by safaali
    hello i have a file named "file.txt" it updates by adding lines to it. I am reading it by this code: $fp = fopen("file.txt", "r"); $data = ""; while(!feof($fp)) { $data .= fgets($fp, 4096); } echo $data; and a huge number of lines appears. I just want to echo the last 5 lines of the file how can i do that ? thanks in advanced

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  • php define variable inside str_replace array

    - by john
    I have a template system, that replaces text such as {HEADER} with the appropriate content. I use an array like this, that replaces the key with the value using str_replace. $array = array("HEADER","This is the header"); foreach($array as $var => $content) { $template = str_replace("{" . strtoupper($var). "}", $content,$template); } Now im trying to use a defined variable like this: define("NAME","Site Name"); Inside the value for the header. So I want the defined variable to be inside the array which gets replaced so it would look like this, but it doesn't work. $array = array("HEADER","Welcome to ".NAME."'s website!"); Any ideas? tell me if im not clear

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  • PHP Infine Loop Problem

    - by Ashwin
    function httpGet( $url, $followRedirects=true ) { global $final_url; $url_parsed = parse_url($url); if ( empty($url_parsed['scheme']) ) { $url_parsed = parse_url('http://'.$url); } $final_url = $url_parsed; $port = $url_parsed["port"]; if ( !$port ) { $port = 80; } $rtn['url']['port'] = $port; $path = $url_parsed["path"]; if ( empty($path) ) { $path="/"; } if ( !empty($url_parsed["query"]) ) { $path .= "?".$url_parsed["query"]; } $rtn['url']['path'] = $path; $host = $url_parsed["host"]; $foundBody = false; $out = "GET $path HTTP/1.0\r\n"; $out .= "Host: $host\r\n"; $out .= "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0\r\n"; $out .= "Connection: Close\r\n\r\n"; if ( !$fp = @fsockopen($host, $port, $errno, $errstr, 30) ) { $rtn['errornumber'] = $errno; $rtn['errorstring'] = $errstr; } fwrite($fp, $out); while (!@feof($fp)) { $s = @fgets($fp, 128); if ( $s == "\r\n" ) { $foundBody = true; continue; } if ( $foundBody ) { $body .= $s; } else { if ( ($followRedirects) && (stristr($s, "location:") != false) ) { $redirect = preg_replace("/location:/i", "", $s); return httpGet( trim($redirect) ); } $header .= $s; } } fclose($fp); return(trim($body)); } This code sometimes go infinite loop. What's wrong here?

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  • PHP - Get values from Array

    - by danit
    I am trying to get a record from a database using an sql lookup (sql1). This then returns as an array which is fine, but I need to use part of the array for my next stage. $opt=get_records_sql($sql1); //Diags for SQL content print_object($opt); $n = count($opt); if (empty($opt)) { echo 'No options selected'; } else { $optno = $opt["subjectid"]; // Diags of $optno echo '<br>$optno = '.$optno; As you can see, I tried to use this: $opt["subjectid"] as subjectid is the fieldname that I am trying to access and I was under the impression that this was correct for accessing an array, but I get the following error: Notice: Undefined index: subjectid Array contents: Array ( [1] => stdClass Object ( [uname] => JHollands06 [tutor] => M LSt [subjectid] => 1 [year] => 2010 [optid] => 1 ) )

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  • Problem with echoing my array data in PHP

    - by ggfan
    I want to create an array of numbers: 10, 9,8...to 1. But when I echo $numbers, I get "Array" as the output as to the numbers. There is probably a simple thing I missed, can you please tell me. thanks! $numbers=array(); for ($i=10; $i>0; $i--){ array_push($numbers, $i); } echo $numbers;

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  • PHP arrays & keys - fetching particular ones

    - by Rohan
    Hi Lets say I have an array with a structure like this: $arr= Array( array( "id"=>"a" "type">"apple"), array( "id"=>"b"), array( "id"=>"c"), array( "id"=>"c" "type"=>"banana") ); now I want to have a foreach loop which fetches all the array elements which have a key in them named "type". Something like foreach(all arrays which have type in them as $item) How would I do that? many thanks.

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