forms - Validating radio buttons in php -

-

i'm new php , trying write code test whether or not user has clicked radio button in response survey question. there numerous radio buttons. if haven't clicked on 1 i'd issue error user. i've tried couple of approaches, haven't found works. here current code , error message get. php script, i've tried of 3 following examples:

    ....      if ($_post['degree_type'] == "ms"||"ma"||"mba"||"jd"||"phd") {         $degree_type = ($_post['degree_type']);      } else if ($_post['degree_type'] == null) {         $errors[] = 'please select degree type.';     }      if (isset($_post['degree_type'])) {       $errors[] = 'please select degree type.';     } else {       $degree_type= $_post['degree_type'];     }     if (array_key_exists('degree_type', $_post)) {       $degree_type = ($_post['degree_type']);      } else {       $errors[] = 'please select degree type.';     }     ....

here html, located in same page , below php.

          <table>             <tr>               <td class="span6">what type of degree?</td>               <td class="span6">                       <input type="radio" name="degree_type" value="ma"                         <?php if (($_post['degree_type']) == 'ma') {echo 'checked="checked"';} ?>                       >ma                       <input type="radio" name="degree_type" value="ms"                         <?php if (($_post['degree_type']) == 'ms') {echo 'checked="checked"';} ?>                       >ms                       <input type="radio" name="degree_type" value="mba"                         <?php if (($_post['degree_type']) == 'mba') {echo 'checked="checked"';} ?>                       >mba                       <input type="radio" name="degree_type" value="jd"                         <?php if (($_post['degree_type']) == 'jd') {echo 'checked="checked"';} ?>                       >jd               </td>             </tr>            etc....

i "undefined index" error on each of html lines referencing radio button. understand might easier in javascript, don't know js... detailed response appreciated!

thanks!

if you're getting undefined error on html page, can add isset() check logic you're printing out value. e.g.:

<input type="radio" name="degree_type" value="jd" <?php if (($_post['degree_type']) == 'jd') {echo 'checked="checked"';} ?> >jd

becomes

<input type="radio" name="degree_type" value="jd" <?php if (isset($_post['degree_type']) && $_post['degree_type'] == 'jd') {echo 'checked="checked"';} ?>>jd

Comments

Post a Comment

Popular posts from this blog

c++ - Creating new partition disk winapi -

-
i'am trying create new partition , mount volume new, thought createfile let me this, code : lpctstr lpfilename=l"\\\\.\\device\\harddisk0\\partition3"; handle handl=createfile( lpfilename, generic_read | generic_write, file_share_read | file_share_write, null, create_always, file_attribute_normal, null ); if (handl==invalid_handle_value) { qdebug()<<"handl invalid"<<" error"<<getlasterror();} bool success = definedosdevice(ddd_raw_target_path,l"i:",l"\\device\\harddisk0\\partition3"); if(!success) qdebug()<<" definedosdevice failed "<<getlasterror(); bflag = getvolumenameforvolumemountpoint( l"i:\\", // input volume mount point or directory /** u in dir
Read more

Android Prevent Bluetooth Pairing Dialog -

-
i'm developing internal application uses bluetooth printing. want bluetooth pairing occur without user input. have managed working trapping android.bluetooth.device.action.pairing_request broadcast. in broadcast receiver call setpin method, , pairing works ok, bluetoothpairingdialog displayed second or two, disappears - see link below. https://github.com/android/platform_packages_apps_settings/blob/master/src/com/android/settings/bluetooth/bluetoothpairingdialog.java since broadcast non-ordered, can't call abortbroadcast() , , wondering if there other way prevent pairing dialog appearing. can hook window manager in way? i haven't been able come way without modifying sdk. if you're oem, it's easy (i'm on 4.3): in packages/apps/settings/androidmanifest.xml, comment intent filter pairing dialog: <activity android:name=".bluetooth.bluetoothpairingdialog" android:label="@string/bluetooth_pairing_request"
Read more

VBA function to include CDATA -

-
i have following function include cdata: function cdatasection() dim objdom domdocument dim objkmlrootelement ikmldomelement dim objkmlelement ikmldomelement dim cdata ikmldomcdatasection set objdom = new domdocument set objkmlrootelement = objdom.createelement("balloonstyle") objdom.appendchild objkmlrootelement set objkmlelement = objdom.createelement("text") objkmlrootelement.appendchild objkmlelement set cdata = objdom.createcdatasection("text") cdata.data = "<![cdata[<b>latitude = $[latitude]</b>?]]>;" end function when run above, getting error "user defined data type not found" function. yes ripster says find library reference. vba window tools>references for list of relevant references see... http://msdn.microsoft.com/en-us/library/windows/desktop/ms763701%28v=vs.85%29.aspx however, if have hard time tracking down reference, replace dim sta
Read more