Warning: implode() [function.implode]: Invalid arguments passed in แก้ยังไงคะ

$skillComputer = implode(",", $_POST["txtComputer"]);
	$driver = implode(",", $_POST["txtDriver"]);
	$vehicle = implode(",", $_POST["txtVehicle"]);
	$strSQL ="INSERT INTO `homemall`.`application` (
	`ApplyID` ,
	`Position1ID` ,
	`Position2ID` ,
	`NeedSalary` ,
	`Name` ,
	`Surename` ,
	`Nickname` ,
	`Age`,
	`Born` ,
	`Gender` ,
	`Nationality`,
	`Race`,
	`Religion`,
	`IDCard`,
	`High` ,
	`Weight` ,
	`Tel` ,
	`Mobile` ,
	`Email` ,
	`SocialSecurity`,
	`TaxIDnumber`,
	`Picture` ,
	`AddressCensus` ,
	`ProvinceCensus` ,
	`ZipcodeCensus` ,
	`Address` ,
	`Village` ,
	`Build` ,
	`Room` ,
	`Class` ,
	`Moo` ,
	`Soi` ,
	`Road` ,
	`Tambon` ,
	`Amphur` ,
	`ProvinceID` ,
	`Zipcode` ,
	`StyleAddress`,
	`Military`,
	`FamilyStatus`,
	`NameMarriage`,
	`AgeMarriage`,
	`CareerMarriage`,
	`OfficeMarriage`,
	`PositionMarriage`,
	`NumberChild`,
	`MaleChild`,
	`FemaleChild`,				
	`EducationLevel` ,
	`InstitutionName` ,
	`Major` ,
	`GraduationYear` ,
	`GPA` ,
	`OfficeName1` ,
	`TimeWork1` ,
	`Position1` ,
	`Salary1` ,
	`ProgramUsed1` ,
	`ReceivedTraining1` ,
	`JobDescription1` ,
	`OfficeName2` ,
	`TimeWork2` ,
	`Position2` ,
	`Salary2` ,
	`ProgramUsed2` ,
	`ReceivedTraining2` ,
	`JobDescription2` ,
	`OfficeName3` ,
	`TimeWork3` ,
	`Position3` ,
	`Salary3` ,
	`ProgramUsed3` ,
	`ReceivedTraining3` ,
	`JobDescription3` ,
	`CKTypewriterTH` ,
	`TypewriterTH` ,
	`CKTypewriterENG` ,
	`TypewriterENG` ,
	`Computer` ,
	`OtherProgram` ,
	`SpeakTH` ,
	`ReadTH` ,
	`WriteTH` ,
	`LanguageOther` ,
	`SpeakOther` ,
	`ReadOther` ,
	`WriteOther` ,
	`Driver` ,
	`Vehicle` ,
	`TechnigueOther` ,
	`CashGuarantee` ,
	`PersonGuarantee` ,
	`ChangePosition` ,
	`OutsideWork` ,
	`Overtime` ,
	`StartWork` ,
	`filePicOther1`,
	`filePicOther2`,
	`RegisterDate`
	)
	VALUES (
	NULL ,
   	'".$_POST["txtPosition1"]."',
   	'".$_POST["txtPosition2"]."',
   	'".$_POST["txtNeedSaraly"]."',
   	'".$_POST["txtName"]. "',
   	'".$_POST["txtSurename"]."',
   	'".$_POST["txtNickname"]."',
   	'".$_POST["txtAge"]."',
   	'".$_POST["txtBorn"]."',
   	'".$_POST["txtGender"]."', 
   	'".$_POST["txtNationality"]."',
	'".$_POST["txtRace"]."',
	'".$_POST["txtReligion"]."',
	'".$_POST["txtIDCard"]."',
	'".$_POST["txtHigh"]."',
	'".$_POST["txtWeight"]."',
	'".$_POST["txtTel"]."',
	'".$_POST["txtMobile"]."',
	'".$_POST["txtEmail"]."',
	'".$_POST["txtSocialSecurity"]."',
	'".$_POST["txtTaxIDnumber"]."',
	'".$_POST["filePicture"]."',
	'".$_POST["txtAddressCensus"]."',
	'".$_POST["txtProvinceCensus"]."',
	'".$_POST["txtZipcodeCensus"]."',
	'".$_POST["txtAddress"]."',
	'".$_POST["txtVillage"]."',
	'".$_POST["txtBuild"]."',
	'".$_POST["txtRoom"]."',
	'".$_POST["txtClass"]."',
	'".$_POST["txtMoo"]."',
	'".$_POST["txtSoi"]."',
	'".$_POST["txtRoad"]."',
	'".$_POST["txtTambon"]."',
	'".$_POST["txtAmphur"]."',
	'".$_POST["txtProvince"]."',
	'".$_POST["txtZipcode"]."',
	'".$_POST["txtStyleAddress"]."',
	'".$_POST["txtMilitary"]."',
	'".$_POST["txtFamilyStatus"]."',
	'".$_POST["txtNameMarriage"]."',
	'".$_POST["txtAgeMarriage"]."',
	'".$_POST["txtCareerMarriage"]."',
	'".$_POST["txtOfficeMarriage"]."',
	'".$_POST["txtPositionMarriage"]."',
	'".$_POST["txtNumberChild"]."',
	'".$_POST["txtMaleChild"]."',
	'".$_POST["txtFemaleChild"]."',
	'".$_POST["txtEducationLevel"]."',
	'".$_POST["txtInstitutionName"]."',
	'".$_POST["txtMajor"]."',
	'".$_POST["txtGraduationYear"]."',
	'".$_POST["txtGPA"]."',
	'".$_POST["txtOfficeName1"]."',
	'".$_POST["txtTimeWork1"]."',
	'".$_POST["txtPositionOld1"]."',
	'".$_POST["txtSalary1"]."',
	'".$_POST["txtProgramUsed1"]."',
	'".$_POST["txtReceivedTraining1"]."',
	'".$_POST["txtJobDescription1"]."',
	'".$_POST["txtOfficeName2"]."',
	'".$_POST["txtTimeWork2"]."',
	'".$_POST["txtPositionOld2"]."',
	'".$_POST["txtSalary2"]."',
	'".$_POST["txtProgramUsed2"]."',
	'".$_POST["txtReceivedTraining2"]."',
	'".$_POST["txtJobDescription2"]."',
	'".$_POST["txtOfficeName3"]."',
	'".$_POST["txtTimeWork3"]."',
	'".$_POST["txtPositionOld3"]."',
	'".$_POST["txtSalary3"]."',
	'".$_POST["txtProgramUsed3"]."',
	'".$_POST["txtReceivedTraining3"]."',
	'".$_POST["txtJobDescription3"]."',
	 '".$_POST["txtCKTypewriterTH"]."',
	 '".$_POST["txtTypewriterTH"]."',
	 '".$_POST["txtCKTypewriterENG"]."',
	 '".$_POST["txtTypewriterENG"]."',
	 '$skillComputer',
	 '".$_POST["txtOtherProgram"]."',
	 '".$_POST["txtSpeakENG"]."',
	 '".$_POST["txtReadENG"]."',
	 '".$_POST["txtWriteENG"]."',
	 '".$_POST["txtLanguageOther"]."',
	 '".$_POST["txtSpeakOther"]."',
	 '".$_POST["txtReadOther"]."',
	 '".$_POST["txtWriteOther"]."',
	 '$driver',
	 '$vehicle',
	 '".$_POST["txtTechnigueOther"]. "',
	 '".$_POST["txtCashGuarantee"]. "',
	 '".$_POST["txtPersonGuarantee"]. "',
	 '".$_POST["txtChangePosition"]. "',
	 '".$_POST["txtOutsideWork"]. "',
	 '".$_POST["txtOvertime"]. "',
	 '".$_POST["txtStartWork"]. "',
	 'images/picapply/".$_FILES["filePicOther1"]["name"]."',
	 'images/picapply/".$_FILES["filePicOther2"]["name"]. "',
	 now() ); ";

<tr>
  <td><div class="t3">เครื่องใช้สำนักงาน:</div>
   <div class="fontcheckbox">   <input name="txtCKTypewriterTH" type="checkbox" value="พิมพ์ดีดไทย" class="checkbox">พิมพ์ดีดไทย <input type="text" name="txtTypewriterTH" class="inputTypewriter"/> คำ/นาที</div>
  </td>
  <td colspan="2">
   <div class="fontcheckbox"><input name="txtCKTypewriterENG" type="checkbox" value="พิมพ์ดีดภาษาอังกฤษ" class="checkbox">พิมพ์ดีดภาษาอังกฤษ <input type="text" name="txtTypewriterENG" class="inputTypewriter"/> คำ/นาที</div>
  </td>
  </tr>
   <tr>
  <td><div class="t3">คอมพิวเตอร์:</div>
  <div class="fontcheckbox">
    <input name="txtComputer[]" type="checkbox" value="Word" class="comcheckbox">Word
   	<input name="txtComputer[]" type="checkbox" value="Excel" class="comcheckbox">Excel
    <input name="txtComputer[]" type="checkbox" value="PowerPoint" class="comcheckbox">PowerPoint
    <input name="txtComputer[]" type="checkbox" value="Access" class="comcheckbox">Access
   </div> 
  </td>
<tr>
  <td>
  <div class="t2">ใบอนุุญาตการขับขี่</div>
  </td>
  </tr>
  <tr>
  <td>
  <div class="fontcheckbox"><input name="txtDriver[]" type="checkbox" value="รถยนต์" class="checkbox">รถยนต์
  <input name="txtDriver[]" type="checkbox" value="รถจักรยานยนต์" class="checkbox">รถจักรยานยนต์</div>
  </td>
  </tr>
  <tr>
  <td>
  <div class="t2">พาหนะที่เป็นของท่านเอง</div>
  </td>
  </tr>
  <tr>
  <td>
 <div class="fontcheckbox"> <input name="txtVehicle[]" type="checkbox" value="รถยนต์" class="checkbox">รถยนต์
  <input name="txtVehicle[]" type="checkbox" value="รถจักรยานยนต์" class="checkbox">รถจักรยานยนต์</div>
  </td>
  </tr>