当用户发布我制作的表单时，我出现了死亡的白屏。有趣的是，当我作为网站的管理员(这个网站是使用wordpress运行的)在表单中发布相同的数据并提交它的工作，但当用户这样做时，它会显示白屏，并提供帮助。下面是我使用的表单数据和其他一些代码。
这是代码的形式部分(我知道这不是伟大的代码，我还在学习)
function bio_form(){
global $wpdb, $current_user;
//get current user info
get_currentuserinfo();
$yes = $_GET['submitted'];
//check log in
if(!is_user_logged_in()) {
//user isnt logged in
echo "You must be logged in to use this form";
//show login form
if (!(current_user_can('level_0'))){
echo "<h2>Login</h2>";
echo "<form action=" . get_option('home') . "/wp-login.php method='post' enctype='multipart/form-data'>";
echo "<input type='text' name='log' id='log' value='" . wp_specialchars(stripslashes($user_login), 1) . "' size='20' />";
echo "<input type='password' name='pwd' id='pwd' size='20' />";
echo "<input type='submit' name='submit' value='Send' class='button' />";
echo "<p>";
echo "<label for='rememberme'><input name='rememberme' id='rememberme' type='checkbox' checked='checked' value='forever' /> Remember me</label>";
echo "<input type='hidden' name='redirect_to' value=" . $_SERVER['REQUEST_URI'] . " />";
echo "</p>";
echo "</form>";
echo "<a href='" . get_option('home') . "/wp-login.php?action=lostpassword'>Recover password</a>";
//add register link
} else {
echo "<h2>Logout</h2>";
echo "<a href=" . wp_logout_url(urlencode($_SERVER['REQUEST_URI'])) . ">logout</a><br />";
}
}else{
$gg = false;
if($yes == NULL){
$id = $_GET['enID'];
$em = $_GET['em'];
$sub = $_GET['submit'];
if($id == NULL || $em == NULL){
echo "<div align='center'><form action=''>";
echo "<p>Plese use the email you used on the your entry, and the entryID that was generated for your entry.</p>";
echo "Email: <input type='text' name='em' value='$em'></input></br>";
echo "EntryID: <input type='text' name='enID' value='$id'></input></br>";
echo "<input type='hidden' name='submit' value='yes'></input>";
echo "<input type='submit' value='submit'></input></form></div>";
}else{
$sql = "SELECT * FROM `" . WP_BIO_GIRLS_DATA . "`";
$users = $wpdb->get_results($sql);
foreach($users as $user){
if(($user->id == $id)&& ($user->email == $em)){
$gg = true;
break;
}
}
}
}else{
$gg = true;
}
if($gg == true){
//user is logged in
$sql = "SELECT * FROM `" . WP_BIO_GIRLS . "`";
$users = $wpdb->get_results($sql);
//Check to see if user is in GG DB
$userThere = false;
foreach($users as $user){
if($user->user_id == $current_user->ID){
$userThere = true;
break;
}
}
//If not in GG DB add to it
if($userThere == false){
$sql = "INSERT INTO `" . WP_BIO_GIRLS . "` (user_id,title1,title2,title3,title4,title5,title6,title7,title8,title9,title10,title11,title12,title13,title14,title15) VALUES ($current_user->ID,'What game consoles (if any) do you own & which is your favorite?','What are your Gamertags & corresponding gamerscores for those consoles?','What are your top 3 games? Movies? Favorite Genre?','What nerd icon, hero, or villian do you have a crush on?','What was your first exposure to nerd culture?','What is your dream game?','What would be your ideal character to cosplay?','What do you feel makes nerd culture unique?','What do you feel nerd culture lacks?','How do you feel about professional Video Gaming?','What superpower would you have and would / should you register it?','What is the worst pick up line you have ever heard?','Do you find Murdoc (our mascot) sexy?','How many hours a day would you say you spend nerding out?','How do you envision D-day coming about?')";
$insert = $wpdb->query($sql);
}
//Place to get post and store data
$fName = $_GET['firstname'];
$lName = $_GET['lastname'];
$email = $_GET['email']);
$dName = $_GET['disname'];
$enID = $_GET['eid'];
$Q1 = $_GET['Q1'];
$Q2 = $_GET['Q2'];
$Q3 = $_GET['Q3'];
$Q4 = $_GET['Q4'];
$Q5 = $_GET['Q5'];
$Q6 = $_GET['Q6'];
$Q7 = $_GET['Q7'];
$Q8 = $_GET['Q8'];
$Q9 = $_GET['Q9'];
$Q10 = $_GET['Q10'];
$Q11 = $_GET['Q11'];
$Q12 = $_GET['Q12'];
$Q13 = $_GET['Q13'];
$Q14 = $_GET['Q14'];
$Q15 = $_GET['Q15'];
if($dName != NULL && $email != NULL && $lName != NULL && $fName != NULL && $enID != NULL && ($_GET['submitted'] != NULL)){
//Call entry id db to see if they are a GG.
echo "<div align='center'>Information was saved!!</div>";
//Store database
$sql = "UPDATE `" . WP_BIO_GIRLS . "` SET FirstName='$fName', LastName='$lName', Email='$email', DisName='$dName', EID='$enID', text1='$Q1', text2='$Q2', text3='$Q3', text4='$Q4', text5='$Q5', text6='$Q6', text7='$Q7', text8='$Q8', text9='$Q9', text10='$Q10', text11='$Q11', text12='$Q12', text13='$Q13', text14='$Q14', text15='$Q15' WHERE user_id='$current_user->ID'";
$stored = $wpdb->query($sql);
}else{
//Need to fill required fields
if(($fName == NULL || $lName == NULL || $email == NULL || $dName == NULL || $enID == NULL) && ($_GET['submitted'] != NULL)){
echo "<div align='center'><style>h2 {color:#FF0000;}</style><h2>Please fill out all the required boxes</h2></div>";
}
//Old, needs deleted
$status = false;
$sql = "SELECT * FROM `" . WP_BIO_GIRLS . "`";
$users = $wpdb->get_results($sql);
foreach($users as $user){
if($user->user_id == $current_user->ID){
$status = true;
break;
}
}
if($status == false){
echo "<div align='center'><h3>Sorry only gamer girls can fill out this form</h3></div>";
}else{
//Show form if all checks pass
//get current users current values
$sql = "SELECT * FROM `" . WP_BIO_GIRLS . "` WHERE user_id='$current_user->ID'";
$users = $wpdb->get_results($sql);
//get values from db
foreach($users as $user){
$userID = $user->user_id;
$fName = $user->FirstName;
$lName = $user->LastName;
$dName = $user->DisName;
$email = $user->Email;
$EID = $user->EID;
$userQ1T = $user->title1;
$userQ1X = $user->text1;
$userQ2T = $user->title2;
$userQ2X = $user->text2;
$userQ3T = $user->title3;
$userQ3X = $user->text3;
$userQ4T = $user->title4;
$userQ4X = $user->text4;
$userQ5T = $user->title5;
$userQ5X = $user->text5;
$userQ6T = $user->title6;
$userQ6X = $user->text6;
$userQ7T = $user->title7;
$userQ7X = $user->text7;
$userQ8T = $user->title8;
$userQ8X = $user->text8;
$userQ9T = $user->title9;
$userQ9X = $user->text9;
$userQ10T = $user->title10;
$userQ10X = $user->text10;
$userQ11T = $user->title11;
$userQ11X = $user->text11;
$userQ12T = $user->title12;
$userQ12X = $user->text12;
$userQ13T = $user->title13;
$userQ13X = $user->text13;
$userQ14T = $user->title14;
$userQ14X = $user->text14;
$userQ15T = $user->title15;
$userQ15X = $user->text15;
}
//create form
echo "<style>textarea {resize:none;} table {text-align: center;}</style>";
echo "<div align='center' id='form'><h1>Gaming Girls Information Form</h1>";
echo "<h7>* denoted required fields</h7>";
echo "<table cellspacing='20' cellpadding='3'>";
echo "<tr><td><form name='info_form' action='' method='get' ENCTYPE='multipart/form-data'></td></tr>";
echo "<tr><td colspan='2'>*First Name: <input type='text' name='firstname' value='$fName'></input></td></tr>";
echo "<tr><td colspan='2'>*Last Name: <input type='text' name='lastname' value='$lName'></input></td></tr>";
echo "<tr><td colspan='2'>*Display Name: <input type='text' name='disname' value='$dName'></input></td></tr>";
echo "<tr><td colspan='2'>*Email: <input type='text' name='email' value='$email'></input></td></tr>";
echo "<tr><td colspan='2'>*OHMS Gaming EntryID: <input type='text' name='eid' value='$EID'></input></td></tr>";
echo "<tr><td>$userQ1T : <TEXTAREA rows='3' cols='30' name='Q1'>$userQ1X</TEXTAREA></td>";
echo "<td>$userQ2T : <TEXTAREA rows='3' cols='30' name='Q2'>$userQ2X</TEXTAREA></td></tr>";
echo "<tr><td>$userQ3T : <TEXTAREA rows='3' cols='30' name='Q3'>$userQ3X</TEXTAREA></td>";
echo "<td>$userQ4T : <TEXTAREA rows='3' cols='30' name='Q4'>$userQ4X</TEXTAREA></td></tr>";
echo "<tr><td>$userQ5T : <TEXTAREA rows='3' cols='30' name='Q5'>$userQ5X</TEXTAREA></td>";
echo "<td>$userQ6T : <TEXTAREA rows='3' cols='30' name='Q6'>$userQ6X</TEXTAREA></td></tr>";
echo "<tr><td>$userQ7T : <TEXTAREA rows='3' cols='30' name='Q7'>$userQ7X</TEXTAREA></td>";
echo "<td>$userQ8T : <TEXTAREA rows='3' cols='30' name='Q8'>$userQ8X</TEXTAREA></td></tr>";
echo "<tr><td>$userQ9T : <TEXTAREA rows='3' cols='30' name='Q9'>$userQ9X</TEXTAREA></td>";
echo "<td>$userQ10T : <TEXTAREA rows='3' cols='30' name='Q10'>$userQ10X</TEXTAREA></td></tr>";
echo "<tr><td>$userQ11T : <TEXTAREA rows='3' cols='30' name='Q11'>$userQ11X</TEXTAREA></td>";
echo "<td>$userQ12T : <TEXTAREA rows='3' cols='30' name='Q12'>$userQ12X</TEXTAREA></td></tr>";
echo "<tr><td>$userQ13T : <TEXTAREA rows='3' cols='30' name='Q13'>$userQ13X</TEXTAREA></td>";
echo "<td>$userQ14T : <TEXTAREA rows='3' cols='30' name='Q14'>$userQ14X</TEXTAREA></td></tr>";
echo "<tr><td>$userQ15T : <TEXTAREA rows='3' cols='30' name='Q15'>$userQ15X</TEXTAREA></td></tr>";
echo "<input type='hidden' value='yes' name='submitted'></input>";
echo "<tr><td colspan='2'><input type='submit' value='Submit'></input></td></tr>";
echo "</form></table></div>";
}
}
}else{
if($sub == true){
echo "<div align='center'><h1>Not a vaild id</h1></div>";
}
}
}
}
http://ohmsgaming.com/gaming-girls/gaming-girls-form/?firstname=Lilith&lastname=Crimson&disname=Lilith+Crimson&email=laceylynn325%40yahoo.com&eid=18301743&Q1=Sega+Genesis%2C+Super+Nintendo-2%2C+Nintendo-+2%2C+PlayStation+1%2C+Game+cube%2C+Gameboy%2C+Gameboy+Color%2C+Gameboy+Advanced%2C+Gameboy+SP%2C+Nintendo+64%2C+Xbox+360.&Q2=N%2FA&Q3=Games-%0D%0A1.+Battle+Toads%0D%0A2.+Elder+Scrolls%0D%0A3.+tales+of+symphonia%0D%0A%0D%0AMovies-%0D%0A1.+Labyrinth%0D%0A2.+Strangeland%0D%0A3.+Ace+Ventura+2%0D%0A%0D%0AGenre%0D%0AScifi&Q4=Anthony+Edward+Stark+%28Tony+Stark%2C+Iron+Man%29&Q5=My+Eldest+Brother+and+his+friends+playing+D%26D+and+Magic+the+Gathering+back+in+the+90%27s&Q6=Not+sure+what+you+mean+by+that%2C+but+Skyriim+at+the+Moment.+%0D%0A%0D%0AIf+I+could+create+one%3F+%0D%0A%0D%0AOne+that+takes+place+in+all+time+periods%2C+larger+then+Elder+Scrolls%2C+Being+able+to+create+your+own+fashions+Vastly%2C+weapons%2C+creatures%2C+looks%2C+Kinect+probably+could+take+a+self+scan+and+place+you+into+that+world+and+allow+you+to+live+the+world%2C+as+if+its+your+own+world.&Q7=Poison+Ivy%2C+or+Black+Widow..or+maybe+Red+Sonja.+Really+just+redheaded.+&Q8=The+Ability+to+see+past+reality+and+create+Their+own+Universal+Dimension+if+you+can+say%2C+and+expand+our+minds+into+thinking+%22What+if%22.+%0D%0A%0D%0AThe+nerds+mind+have+been+ubiquitous%2C+and+created+a+vast+reality+of+our+own%2C+making+life%2C+easier+for+some%2C+and+much+more+fun+for+others%2C+and+all+really.+%0D%0A%0D%0ATo+be+a+nerd%2C+isn%27t+just+about+having+brains+anymore%2C+Its+about+having+fun+and+bringing+a+new+level+of+reality+to+all+who+wishes+to+hear+it.&Q9=Pizza.+&Q10=I+think+its+a+great+idea.+Video+gaming+is+a+sport+%28in+its+own+way%29%2C+and+it+allows+gamers+to+pick+up+their+game+and+improve+their+abilities+and+others+learn.+Challenging+skills+allow+those+to+really+see%2C+who+can+kick+A**+and+who+just+need+to+go+home+and+continue+playing+Halo+with+their+friends+at+parties.&Q11=Flying%2FControl+of+Elements+%28really+that+would+be+considered+air%29.+No.+Where+is+the+fun+in+that%3F&Q12=-Hey+girl%2C+what%E2%80%99s+up%3F+Guess+what%3F+It%E2%80%99s+your+lucky+day.+Out+of+all+the+girls+here%2C+I+picked+you+to+talk+to-&Q13=In+a+Sense%2C+yes.+He%27s+very+Attractive.+I+want+to+hug+him+and+feed+him+Cheese+Lol&Q14=Probably+all+day..My+teacher+is+a+huge+nerd%2C+and+all+we+talk+about+is+video+games.+Yes%2C+she%27s+65.+%0D%0A%0D%0AThen+I+come+home%2C+and+pop+in+whatever+game+we+were+talking+about+all+day%2C+or+Oblivion.+Then+spend+the+rest+on+here+on+Deviant+Art+talking+about+Marvel%2C+DC%2C+and+Dark+Horse+Comics%2C+along+with+others.+%0D%0A%0D%0AAlso+D%26D+with+Magic+the+Gathering+with+one+of+my+young+friends+who+is+obsessed+with+them+and+needs+me+to+guide+them+Lol.+So+its+actually+kind+of+forced+sometimes&Q15=Nuclear+Apocalypse%2C+Zombies+then+Follow!&submitted=yes
它真的很长，里面有很多东西，我想知道这是不是问题，尽管正如我所说的，当我使用上面相同的字符串时，它对我来说很好，当我作为管理员登录时。
p。
白屏通常意味着由于错误而崩溃。我建议通过在php代码行中添加:
来搜索错误print_r (error_get_last ());
如果在本行以下出现错误，则不打印错误。
也不要忘记检查数据库(mysql, mysqli, PDO..)是否没有错误返回。使用不同的函数获取错误)
白屏通常是服务器500错误，但如果有通知则不输出到浏览器。
在你的wp-config.php中设置debug为true:
define('WP_DEBUG', true);
然后注销刷新缓存，清除cookie，然后尝试以普通用户身份提交表单，您将得到错误消息