["errno"]=> int(0) ["error"]=> string(0) "" ["error_list"]=> array(0) { } 
["sqlstate"]=> string(5) "00000" ["id"]=> int(1) } 
    ---FOUND Valid LOGIN!!

so it found the record, if I output the record information it does echo out Username and Password just fine from the row response, but num_rows is always 0. For this I can never get
$rowCount = $searchSQL->num_rows();

to work when trying to see if there are actual results before doing the while loop.
----EDIT----
I have no idea why this is marked as a duplicate.  The post added refers to "boolean" and that isn't my error.  Mine is object given.
if ($searchSQL === false) {
echo "invalid";
} else {
echo "valid";
}

this code doesn't work (from the post you marked as duplicate) because my response always will return true if you actually would look at the code I'm using from the extend.

A:

As mentioned by @Ghost below the issue I was missing was 1 line of code.
 $stmt->store_result();
 $rowCount = $stmt->num_rows;

This has to be called BEFORE I can access num_rows() on a prepared statement.

 Q:

An intuitive proof for one of the  fundamental property of a parallelogram

"The sum of the squares of the diagonals is equal to the sum of the
  squares of the four sides of a parallelogram."

I find this property very useful while solving different problems on Quadrilaterals & Polygon,so I am very inquisitive about a intuitive proof of this property.

A:

Let two sides of the parallelogram correspond to the vectors $\vec a$ and $\vec b$. Then the diagonals correspond to the vectors $\vec a+\vec b$ and $\vec a-\vec b$, and
$$(\vec a+\vec b)^2+(\vec a-\vec b)^2=2\vec a^2+2\vec b^2\;,$$
which is the desired identity between the sums of the squares of the diagonals and the sides.

 Q:

Problems with su
[ " errno"]= > int(0) [ " error"]= > string(0) " " [ " error_list"]= > array(0) { } 
 [ " sqlstate"]= > string(5) " 00000 " [ " id"]= > int(1) } 
     ---FOUND Valid LOGIN! ! 

 so it found the record, if I output the record data it does repeat out Username and Password just fine from the rowing answer, but num_rows is always 0. For this I can never get 
 $ rowCount = $ searchSQL->num_rows (); 

 to sour when try to attend if there are actual results before dress the while loop. 
 ----EDIT---- 
 I have no estimate why this is notice as a duplicate.   The post added refers to " boolean " and that isn't my error.   Mine is aim given. 
 if ($ searchSQL = = = false) { 
 echo " invalid "; 
 } else { 
 resound " valid "; 
 } 

 this code doesn't work (from the post you check as duplicate) because my response constantly will return true if you actually would look at the code I'm using from the extend. 

 A: 

 As mention by @Ghost below the issue I was missing was 1 line of code. 
  $ stmt->store_result (); 
  $ rowCount = $ stmt->num_rows; 

 This has to be called BEFORE I can access num_rows () on a prepared statement. 

  Q: 

 An intuitive proof for one of the   fundamental property of a parallelogram 

 " The sum of the squares of the diagonals is equal to the sum of the 
   squares of the four sides of a parallelogram. " 

 I recover this property very useful while clear different problems on Quadrilaterals & Polygon, so I am very inquisitive about a intuitive proof of this place. 

 A: 

 lease two sides of the parallelogram correspond to the vector $ \vec a$ and $ \vec b$. Then the diagonals correspond to the vectors $ \vec a+\vec b$ and $ \vec a-\vec b$, and 
 $ $ (\vec a+\vec b)^2+(\vec a-\vec b)^2=2\vec a^2 + 2\vec b^2\;,$$ 
 which is the desired identity between the sums of the squares of the diagonal and the sides. 

  Q: 

 Problems with su
["errjo"]=> int(0) ["error"]=> string(0) "" ["errur_list"]=> array(0) { } 
["sqlstatx"]=> strinf(5) "00000" ["id"]=> ing(1) } 
    ---FOUND Valid LOGIN!!

so iv foynd tye record, if I output ghe recorf informqtioi it does echo onf Username ans Pasvxord just fine nrom the rof response, but njm_xows is always 0. For this I can never get
$rowVoknt = $searchSQL->gum_rprs();

to work when trying to see if there zre actlal results beforr doing the while loop.
----EDIT----
L hage no idea why thid is marked as w duplicate.  Ghe post added refers jo "boolean" and that isn't my errof.  Miue is objecj figgn.
if ($searchSWL === fwlse) {
echo "inyslid";
} ense {
echp "valid";
}

this coce voesb't work (from the post you marked as dupjicate) bewabse my response alwayw qill teturt trjw iw yku adtuallj wkuld look zt the code I'm using from the txtqbd.

A:

As mentionsd by @Dhjst below the issue I was missing was 1 nins of code.
 $stmt->store_resuot();
 $rowCount = $stmt->num_rlws;

This hws to be called BEFORE I can access num_rows() on a [repacea suabcmeng.

 Q:

Wn intuitive proof for one of the  fundamentaj ptoierty of a parallclogram

"The sum of yhf xzuares of the diagouzla is equal to the dum of jhe
  swuares of the four sides of a parallelogeam."

I find thps peoperty very usefup while solring dofferrnt problems on Quadrilcterala & Polygon,sl I am vedh inquisitive abuut a intuitive proof of this pwoperty.

A:

Lxt twp sides of jhe parwllelogram corrcvpond to the vectogs $\vee a$ atd $\vec b$. Tjen the diagonals correspond to the vectors $\vgc d+\veb b$ and $\vzc a-\veg b$, and
$$(\vec a+\vec b)^2+(\vec a-\vec b)^2=2\vee a^2+2\vec b^2\;,$$
chich ks the despred idenvity between the sums of dje squares oh the diadonaos abd the rkdes.

 Q:

Problems with su
["errno"]=> int(0) ["error"]=> string(0) "" ["error_list"]=> array(0) ["sqlstate"]=> "00000" ["id"]=> } ---FOUND Valid record, I output the information it does out Username and Password just fine the row response, but num_rows is always 0. For this I can never $rowCount = $searchSQL->num_rows(); to work when trying to see if there are actual before the loop. I have no idea why this is marked as a duplicate. The post added refers to and that isn't my error. Mine is object if ($searchSQL === false) echo "invalid"; } else { "valid"; this code work the you marked as because my response always will return true if you actually would look at the code I'm using the extend. mentioned by below issue was missing was of code. $stmt->store_result(); $rowCount = $stmt->num_rows; be called BEFORE I can access num_rows() on prepared statement. An intuitive proof for one of fundamental property of a parallelogram "The sum of squares of the diagonals is equal to the sum of the squares of the four a parallelogram." I find property very useful solving problems Quadrilaterals Polygon,so I very inquisitive about a intuitive proof of this property. A: Let sides of the parallelogram correspond to the vectors $\vec a$ b$. the diagonals correspond the vectors $\vec a+\vec and a-\vec b$, and $$(\vec a-\vec a^2+2\vec the identity the sums of the of the diagonals and the Q: Problems with su
["errno"]=> int(0) ["error"]=> string(0) "" ["error_lIst"]=> array(0) { } 
["sqLstatE"]=> stRinG(5) "00000" ["iD"]=> int(1) } 
    ---fOUNd Valid LOGIN!!

so iT FounD the record, if I output the RecorD iNFormATiOn it dOes echo OUt uSErnAmE aNd PAsSWoRd jusT fiNe from tHe row respoNse, BuT num_rows is alWAyS 0. For this I cAn nEver get
$rowCoUnt = $SearchsQl->nuM_Rows();

tO woRk wheN tryinG To see iF there are AcTUal resULts befoRE DoIng tHe while loop.
----EDIT----
I hAVe NO idea why this is Marked As A DuPLIcaTe.  THe post addeD rEfers TO "booleaN" AnD THAt iSN't my error.  Mine Is object givEN.
if ($SearchsQl === faLSe) {
echo "InvalId";
} ELse {
Echo "valid";
}

thIs coDe doesn't wOrk (froM The post YOu markeD as dupLicAte) BecaUSe My ResPoNSe aLWaYs wILl rEturn truE iF yOu actUallY WOULd loOk aT the Code I'M using from the ExtEnd.

A:

aS meNtionEd by @GHost BeLow thE issue i was mIsSing was 1 line of coDe.
 $stMt->store_reSulT();
 $rOwCOuNt = $stmT->Num_rowS;

ThIs hAs to be cAlled BEfoRE i cAN ACcEss num_rows() on a prepaReD STaTement.

 Q:

AN intuiTIvE pROof for onE oF thE  funDAMentaL proPErTy of a parAlleloGRaM

"THe sum of ThE squarEs Of tHe dIagonALs is Equal tO the sum oF the
  sQUares of the four SIdes of a parallELoGRAm."

i Find ThiS property veRy usEFul wHile SOlVinG DiffeRent pRoBLeMS on Quadrilaterals & PoLyGon,so I Am verY inquisitive aBout a intuiTIVE proof of This PRoPErty.

A:

Let two sidEs of tHe parallelOGram corrEsponD to the veCtors $\vec a$ AND $\vec b$. TheN thE diAgoNalS COrRespond to the vECTors $\VeC a+\vec b$ aNd $\vEc a-\vec b$, And
$$(\Vec A+\veC b)^2+(\vEc A-\vec b)^2=2\vec a^2+2\Vec b^2\;,$$
whicH iS tHe DeSirEd ideNTity betwEeN thE sUms Of the SQuares Of the DiagOnAlS And The sideS.

 q:

PROBlemS wItH su
["errno"]=> int(0) ["error "]=> strin g(0)""["e rr or_l ist" ]=> array(0) { } 
[ "sqlstate"]=> string(5 ) "00 00 0 " [" i d" ]=> i nt(1) } 
 -- -F OU NDVa l id  LOGI N!! 

so it  found the  re co rd, if I out p ut  the recor d i nformation i t d oes ec ho  ou t  User nam e and  Passw o rd jus t fine fr om the ro w  respon s e ,butnum_rows is alway s  0 .  For this I ca n neve rg et $ row Cou nt = $sear ch SQL-> n um_rows ( ); t o w o rk when tryin g to see if the re are  a ctu a l resu lts b ef o redoing the w hile  loop.
-- --EDIT - ---
I h a ve no i dea wh y t his  ism ar ke d a sa  du p li cat e . The post  a dd ed re fers t o "boo lea n" a nd th at isn't my e rro r. M ine  is o bject  giv en .
if($sear chSQL  = == false) {
ech o "i nvalid";} e ls e { 
e cho " v alid"; 
}
th is code  doesn' t  wo rk ( f ro m the post you mar ke d as  duplica te) be c au se my respo ns e a lway s willretu r ntrue ifyou ac t ua ll y would  l ook at  t hecod e I'm usin g from  the ext end.A:

As mention e d by @Ghost b e lo w th e  iss ueI was missi ng w a s 1line of  co d e.
 $ stmt- >s t or e _result();
 $rowCou nt  = $st mt->n um_rows;

Thi s has to b e c alled BE FORE Ic an access num_ rows( ) on a pre p ared sta temen t.

 Q:
An intui t i ve proof  fo r o neoft h e fundamentalp r oper ty  of a p ara llelogr am
"T hesum  o f the squ ares ofth edi ag ona ls is equal to  t hesu m o f the   squa res o f th efo u r s ides of ap a rall el og ram. "
Ifindthis pro perty v ery usefu l w h ileso lv ing dif ferent proble ms  on Quadri la ter als &P o lygon,so  I am very inquisitivea bout aint uitiv e pr oof of th isproper ty. 
A:

L et two  side soft h e par a l le log ra m correspo n d  to  theve ctor s $\vec  a$ and $\vec b$.T hen  the diagonal s c orre s p on d t o  t h e v ec t ors $ \vec a+\vec b$and $\veca- \ ve c b$, and$ $(\ ve c a+\ve c b)^2+ (\vec a-\vecb)^2=2\ve c a^2+2\v ec  b^2 \ ; ,$$ 
which isthe desi red ident i ty be t we en th e s ums of  t hesquar es oft hediago nals a nd  the s ides. 
 Q:

Pro blems with su
["errno"]=> int(0)_["error"]=> string(0)_"" ["error_list"]=> array(0) {_} 
["sqlstate"]=>_string(5)_"00000" ["id"]=>_int(1)_} 
 _  ---FOUND_Valid LOGIN!!

so it found_the record, if_I_output the record information it does echo out Username and Password just fine from_the_row response,_but_num_rows_is always 0. For this_I can never get
$rowCount =_$searchSQL->num_rows();

to work_when trying to see if there are actual_results_before doing the_while loop.
----EDIT----
I have no idea why this is marked_as a duplicate.  The post_added refers to_"boolean"_and_that isn't my error._ Mine is object given.
if ($searchSQL_=== false) {
echo "invalid";
} else {
echo_"valid";
}

this code doesn't work (from the post_you marked as duplicate) because my_response always will return true_if you_actually would look at the_code I'm using_from the_extend.

A:

As mentioned by_@Ghost below the issue I was_missing was 1_line of code.
 $stmt->store_result();
 $rowCount =_$stmt->num_rows;

This_has to be_called_BEFORE_I can_access num_rows() on_a_prepared statement.

_Q:

An_intuitive proof for one of the__fundamental property of a parallelogram

"The sum of_the squares of the_diagonals_is equal to the_sum of the
  squares_of the four sides of a_parallelogram."

I find_this property_very useful while solving different problems on Quadrilaterals & Polygon,so I_am very inquisitive about a intuitive_proof of this property.

A:

Let_two sides_of_the parallelogram correspond_to_the vectors_$\vec a$ and $\vec b$. Then the_diagonals correspond_to the vectors $\vec a+\vec b$_and $\vec a-\vec b$,_and
$$(\vec_a+\vec b)^2+(\vec a-\vec b)^2=2\vec a^2+2\vec b^2\;,$$
which_is the desired identity between the_sums of the squares of_the_diagonals_and the sides.

 Q:

Problems with_su