bool x = a.Where(x=>x==0).Any();
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- 回答 1 已采纳 int[] a = {1,2,3}; bool x = a.Select(x=>x==0).Any(); 为什么返回true？
- 回答 3 已采纳 So my problem is that in the MySqL table that i have the values: "minas" and "subject" might be doubled but the comment" value will be different. How can i display in the table all the rows that have the same "subject" and "minas" values and not the last one only? Also, if you have any further comments on my way of writing the code feel free to correct me In case your having trouble understanding here are some photos: http://imgur.com/gallery/Oa9Jc This is my Code (PHP and html combined) <?php include 'dbconn.php'; if(isset($_POST['Submit'])) { $subject = trim(mysqli_real_escape_string($conn, $_POST['mathima'])); $month = trim(mysqli_real_escape_string($conn, $_POST['minas'])); $sql = "SELECT subject, month, comment FROM mathimata WHERE subject = '$subject' AND month = '$month'"; $result = $conn->query($sql); $noresult = "Δεν έχει καταχωρηθεί το συγκεκριμένο μάθημα"; if ($result->num_rows > 0) { // output data of each while($row = $result->fetch_assoc()) { $comment = $row["comment"]; } } } ?> <!DOCTYPE html> <html lang="el"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags --> <link rel="icon" href="../../favicon.ico"> <title>E•Pagkrition</title> <!-- Bootstrap core CSS --> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> <!-- Custom styles for this template --> <link href="cover.css" rel="stylesheet" > <!-- IE10 viewport hack for Surface/desktop Windows 8 bug --> <link href="../assets/css/ie10-viewport-bug-workaround.css" rel="stylesheet"> </head> <body> <div class="container"> <h2>Αποτελέσματα αναζήτησης</h2> <p>Εδώ είναι το μάθημα που επέλεξες</p> <table class="table"> <thead> <tr> <th>Μάθημα</th> <th>Μήνας</th> <th>Περιγραφή</th> </tr> </thead> <tbody> <tr> <td><?php echo "$subject"; ?></td> <td><?php echo "$month"; ?></td> <td><?php if (isset($comment)) { echo $comment; } else { echo $noresult; }?></td> </tr> </tbody> </table> </div> </body> </html>
- 回答 2 已采纳 I tested source code from this tutorial http://query7.com/php-jquery-todo-list-part-1 and just deploy their source taken here http://query7.com/wp-content/uploads/php-jquery-todolist.zip To my surprise after delete action, I refreshed the screen but item is still not deleted I can't see any bug in code can you ? process.php <?php //Connect to the database $connection = mysql_connect('localhost:3316', 'root' , 'root'); $selection = mysql_select_db('notes', $connection); //Was the form submitted? if($_POST['submit']){ //Map the content that was sent by the form a variable. Not necessary but it keeps things tidy. $content = $_POST['content']; //Insert the content into database $ins = mysql_query("INSERT INTO `notes` (content) VALUES ('$content')"); //Redirect the user back to the index page header("Location:index.php"); } /*Doesn't matter if the form has been posted or not, show the latest posts*/ //Find all the notes in the database and order them in a descending order (latest post first). $find = mysql_query("SELECT * FROM `notes` ORDER BY id DESC"); //Setup the un-ordered list echo '<table border="0" cellpadding="5" cellspacing="0" class="list" width="100%">'; //Continue looping through all of them while($row = mysql_fetch_array($find)){ //For each one, echo a list item giving a link to the delete page with it's id. echo '<tr><td valign="middle" width="90%">' . $row['content'] . ' </td> <td valign="middle" width="10%"><form id="form" action="delete.php?id=' . $row['id'] . '" method="post"> <input class="todo_id" name="todo_id" type="hidden" value="' . $row['id'] . '" /> <input class="todo_content" name="todo_content" type="hidden" value="' . $row['content'] . '" /> <input type="image" src="images/delete.png" class="delete" name="delete" width="20px" /> </form> </td></tr>'; } //End the un-ordered list echo '</table>'; ?> <script type="text/javascript"> $(".delete").click(function(){ //Retrieve the contents of the textarea (the content) var todo_id = $(this).parent().find(".todo_id").val(); var todo_content = $(this).parent().find(".todo_content").val(); //Build the URL that we will send var url = 'submit=1&id=' + todo_id; //Use jQuery's ajax function to send it $.ajax({ type: "POST", url: "delete.php", data: url, success: function(){ //If successful , notify the user that it was added $("#msg").html("<p class='remove'>You just deleted: <i>" + todo_content + "</i></p>"); $("#content").val(''); todolist(); } }); //We return false so when the button is clicked, it doesn't follow the action return false; }); </script> delete.php <?php //Connect to the database $connection = mysql_connect('localhost', 'root' , ''); $selection = mysql_select_db('notes', $connection); //delete.php?id=IdOfPost if($_POST['submit']){ //if($_GET['id']){ echo $id = $_POST['id']; //$id = $_GET['id']; //Delete the record of the post $delete = mysql_query("DELETE FROM `notes` WHERE `id` = '$id'"); //Redirect the user header("Location:index.php"); } ?>
- 回答 4 已采纳 I currently use Cython to link C and Python, and get speedup in slow bits of python code. However, I'd like to use goroutines to implement a really slow (and very parallelizable) bit of code, but it must be callable from python. (I've already seen this question) I'm (sort of) happy to go via C (or Cython) to set up data structures etc if necessary, but avoiding this extra layer would be good from a bug fix/avoidance point of view. What is the simplest way to do this without having to reinvent any wheels?
- 回答 1 已采纳 I am using Codeigniter 2.1 with the latest version of IonAuth (http://benedmunds.com/ion_auth) I am having a problem getting the user object using the method described in the documentation, in the previous version of IonAuth this worked fine - but now this doesn't seem to work - see the screenshots below to see what I mean. All I am doing is just outputting this in the code :- $this->ion_auth->user(); Any ideas what I am doing wrong or is there a bug in the latest iteration of IonAuth? http://imageshack.us/photo/my-images/138/outputofuserobjectnew.jpg/ http://imageshack.us/photo/my-images/26/outputofuserobjectold.jpg P.S The first link is how it looks now - the latter link is how it used to look (grabbed from an existing project) - I know I could just downgrade the IonAuth to the older version but i'd prefer to keep it if possible.
- 回答 2 已采纳 I have a web application written with PHP. I wanted to find all URLs inside users comments and change them to clickable links. I searched many websites and pages and found the solution below (Unfortunately I did not find its reference link again): <?php function convert($input) { $pattern = '@(http)?(s)?(://)?(([a-zA-Z])([-\w]+\.)+([^\s\.]+[^\s]*)+[^,.\s])@'; return $output = preg_replace($pattern, '<a href="http$2://$4">$0</a>', $input); } ?> This code works perfectly thanks to its author. But I found out there is a bug in it that I could not solve. If detected URL started with s letter (without https), the href value won't have that s character and http will change to https, whereas inner text is correct. Example: source.com >> <a href="https://ource.com">source.com</a> Do you have any solution to solve this bug?
- 回答 2 已采纳 I am facing a issue such that i am able to link to a file that is present in an http server or a ftp server.. but i am not able to link to a file that is present in a file server.. ie, More Clearly.. if the URL is http://serverpath.com/images/image.jpg or ftp://serverpath.com/images/image.jpg or a remote path the file_exists function gives a true value but if a give a file server path like the similar path as //serverpath/public/images/image.jpg the file_exists function is giving a false value. UPDATE I am using PHP 5.4.4 There was a bug reported regarding this issue in the previous version of php ie below 5.3 and it was told that this issue has been solved in the versions above 5.3. Is there any change in the php.ini that we need to make change to enable. I searched but did not get the answer i expected Please Help
- 回答 1 已采纳 I am working on testing an application of mine, for which I need to create temporary files with specific extensions. My goal is to create files in a temp directory that look similar to this example123.ac.json. In order to do this I am using ioutil.TempDir and ioutil.TempFile. Here is a small contrived example of what I am doing. main.go: package main func main() { } main_test.go: package main import ( "fmt" "io/ioutil" "os" "testing" ) func TestMain(t *testing.T) { dir, err := ioutil.TempDir("", "testing") if err != nil { t.Fatalf("unable to create temp directory for testing") } defer os.RemoveAll(dir) file, err := ioutil.TempFile(dir, "*.ac.json") // Create a temporary file with '.ac.json' extension if err != nil { t.Fatalf("unable to create temporary file for testing") } fmt.Printf("created the following file: %v ", file.Name()) } When I run the tests locally on my Mac with go test the following is outputted from the fmt.Printf is $ go test created the following file: /var/folders/tj/1_mxwn350_d2c5r9b_2zgy7m0000gn/T/testing566832606/900756901.ac.json PASS ok github.com/JonathonGore/travisci-bug 0.004s So it works as expected but when I run it in TravisCI the following is outputted from the Printf statement: created the following file: /tmp/testing768620677/*.ac.json193187872 For some reason it is using the literal asterisk inside TravisCI but not when running on my own computer. Here is a link to the TravisCI logs if interested. For completeness here is my .travis.yml: language: go go: - "1.10" Anyone have any idea what is going on here? Or am I missing something obvious?
- 回答 2 已采纳 Got a weird bug best shown by this page http://www.zoecormier.com/freelance/ Scroll down to the article named 'Testing turnitin' and you will see the article date is not showing. The article above it (named 'Stolen words') is showing the date. These two articles have the same date, but only one is displaying it. Code for the article list is: <?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?> <?php $externalLink = get_post_meta($post->ID, 'external link', true); ?> <?php $pdfLink = get_post_meta($post->ID, 'pdf link', true); ?> <ul class="article_index"> <li class="title"><a href="<?php the_permalink() ?>" title="Read <?php the_title(); ?>"><?php the_title(); ?></a></li> <li class="date"><?php the_date('d.m.y') ?></li> <li class="publication"><?php echo get_post_meta($post->ID, 'publication', true) ?></li> <li class="tags"><?php the_tags(' ',' ',' '); ?></li> <li class="link"><?php if ( !$externalLink ) { } else { ?><a href="<?php echo $externalLink ?>"><img src="<?php echo $baseUrl; ?>images/icon_world.gif" alt="Weblink" title="Weblink" width="16" height="16" border="0" /></a><?php } ?></li> <li class="pdf"><?php if ( !$pdfLink ) { } else { ?><a href="<?php echo $pdfLink ?>"><img src="<?php echo $baseUrl; ?>images/icon_pdf.gif" alt="View pdf" title="View pdf" height="16" border="0" /></a><?php } ?></li> </ul> <?php endwhile; ?> <?php endif; ?> Can a kind fellow offer any ideas? Thanks.
- 回答 1 已采纳 I have a Calendar function and the problem is that it only displays events for months 10, 11 and 12 none before that are shown. So if on the URL I add: calender.php?month=01&year=2013 TO calender.php?month=09&year=2013, No events will be displayed. BUT if I do: calender.php?month=10&year=2013, calender.php?month=11&year=2013 or calender.php?month=12&year=2013, these will display fine. I cannot find the part of the code responsible for this bug, any ideas anyone? :o/ Here is the Full function code: <?php /* draws a calendar */ function draw_calendar($month,$year,$events = array()){ /* draw table */ $calendar = '<table cellpadding="0" cellspacing="0" class="calendar">'; /* table headings */ $headings = array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'); $calendar.= '<tr class="calendar-row"><td class="calendar-day-head">'.implode('</td><td class="calendar-day-head">',$headings).'</td></tr>'; /* days and weeks vars now ... */ $running_day = date('w',mktime(0,0,0,$month,1,$year)); $days_in_month = date('t',mktime(0,0,0,$month,1,$year)); $days_in_this_week = 1; $day_counter = 0; $dates_array = array(); /* row for week one */ $calendar.= '<tr class="calendar-row">'; /* print "blank" days until the first of the current week */ for($x = 0; $x < $running_day; $x++): $calendar.= '<td class="calendar-day-np">&nbsp;</td>'; $days_in_this_week++; endfor; /* keep going with days.... */ for($list_day = 1; $list_day <= $days_in_month; $list_day++): ////$calendar.= '<td class="calendar-day"><div style="position:relative;height:100px;">'; $calendar.= '<td class="calendar-day"><div style="position:relative;height:100px;">'; /* add in the day number */ if($list_day < 10) { $list_day = str_pad($list_day, 2, '0', STR_PAD_LEFT); } $calendar.= ".$list_day."; $event_day = $year.'-'.$month.'-'.$list_day; ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// /* add in the day number */ $calendar.= '<div class="day-number">'.$list_day.'</div>'; $event_day = $year.'-'.$month.'-'.$list_day; if(isset($events[$event_day])) { //var_dump($events[$event_day]); foreach($events[$event_day] as $event) { ////$calendar.= '<div class="event"><a href="cal_popup.php?title='.$event['title'].'" target="blank" title="'.$event['title'].'">'.$event['title'].'</a></div>'; $calendar.= '<div class="event" id="selector"><a href="#" target="blank" title="'.$event['title'].'">'.$event['title'].'</a><div class="overlayOuter"><div class="overlayInner"></div></div></div>'; //var_dump($events[$event_day]); } } else { $calendar.= str_repeat('<p>&nbsp;</p>',2); } //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// $calendar.= '</div></td>'; if($running_day == 6): $calendar.= '</tr>'; if(($day_counter+1) != $days_in_month): $calendar.= '<tr class="calendar-row">'; endif; $running_day = -1; $days_in_this_week = 0; endif; $days_in_this_week++; $running_day++; $day_counter++; endfor; /* finish the rest of the days in the week */ if($days_in_this_week < 8): for($x = 1; $x <= (8 - $days_in_this_week); $x++): $calendar.= '<td class="calendar-day-np">&nbsp;</td>'; endfor; endif; /* final row */ $calendar.= '</tr>'; /* end the table */ $calendar.= '</table>'; /** DEBUG **/ $calendar = str_replace('</td>','</td>'." ",$calendar); $calendar = str_replace('</tr>','</tr>'." ",$calendar); /* all done, return result */ return $calendar; } function random_number() { srand(time()); return (rand() % 7); } /* date settings */ $month = (int) ($_GET['month'] ? $_GET['month'] : date('m')); $year = (int) ($_GET['year'] ? $_GET['year'] : date('Y')); /* select month control */ /*$select_month_control = '<select name="month" id="month">'; for($x = 1; $x <= 12; $x++) { $select_month_control.= '<option value="'.$x.'"'.($x != $month ? '' : ' selected="selected"').'>'.date('F',mktime(0,0,0,$x,1,$year)).'</option>'; } $select_month_control.= '</select>';*/ $select_month_control = '<select name="month" id="month">'; for($x = 1; $x <= 12; $x++) { $select_month_control.= '<option value="'.str_pad($x, 2, "0", STR_PAD_LEFT).'"'.($x != $month ? '' : ' selected="selected"').'>'.date('F',mktime(0,0,0,$x,1,$year)).'</option>'; } $select_month_control.= '</select>'; /* select year control */ $year_range = 7; $select_year_control = '<select name="year" id="year">'; for($x = ($year-floor($year_range/2)); $x <= ($year+floor($year_range/2)); $x++) { $select_year_control.= '<option value="'.$x.'"'.($x != $year ? '' : ' selected="selected"').'>'.$x.'</option>'; } $select_year_control.= '</select>'; /* "next month" control */ $next_month_link = '<a href="?month='.($month != 12 ? $month + 1 : 1).'&year='.($month != 12 ? $year : $year + 1).'" class="control">Next Month &gt;&gt;</a>'; /* "previous month" control */ $previous_month_link = '<a href="?month='.($month != 1 ? $month - 1 : 12).'&year='.($month != 1 ? $year : $year - 1).'" class="control">&lt;&lt; Previous Month</a>'; /* bringing the controls together */ $controls = '<form method="get">'.$select_month_control.$select_year_control.'&nbsp;<input id="cal_submit" type="submit" name="submit" value="Go" style="padding:1px 4px;margin:2px 0;" />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$previous_month_link.'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.$next_month_link.' </form>'; /* get all events for the given month */ $events = array(); //$query = "SELECT title, DATE_FORMAT(date,'%Y-%m-%d') AS date FROM table1 WHERE user_id = '$session_user_id' AND date LIKE '$year-$month%' AND active = 1"; $query = "SELECT title, DATE_FORMAT(date,'%Y-%m-%d') AS date FROM table1 WHERE user_id = '$session_user_id' AND date BETWEEN '$year-$month-1' AND '" . date("Y-m-t", strtotime("$year-$month-1")) . "' AND active = 1"; $result = mysql_query($query,$db_link) or die('cannot get results!'); while($row = mysql_fetch_assoc($result)) { $events[$row['date']][] = $row; //var_dump($events); //echo ($query); } echo '<div style="clear:left;float:left;width:100%;margin-top:30px;">'; echo '<h2 style="float:left; padding-right:30px;">'.date('F',mktime(0,0,0,$month,1,$year)).' '.$year.'</h2>'; echo '<div style="float:left;">'.$controls.'</div>'; echo '<div style="clear:both;"></div>'; echo '</div>'; echo draw_calendar($month,$year,$events); echo '<br /><br />'; ?>
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