How to include a for and multidimensional array in the body of php mailer? - phpmailer

Question

I am using PHP Mailer.
I want to add dynamic content in php to the body but I am not being able to do it.
If I add this on the php mailer body, it works.
$mail->Body="<h3>Dados do 1º Titular</h3><ul><li><b>Nome: </b>".$titular1_name."</li><li><b>Idade: </b>".$titular1_idade."</li><li><b>Estado Civil</b>".$titular1_estado_civil."</li><li><b>Dependentes</b>".$titular1_dependentes."</li><li><b>Rendimento</b>".$titular1_rendimento."</li><li><b>Penhora</b>".$titular1_penhora."</li></ul><h3>Dados do 2º titular</h3><ul><li><b>Nome: </b>".$titular2_name."</li><li><b>Idade: </b>".$titular2_idade."</li><li><b>Estado Civil</b>".$titular2_estado_civil."</li><li><b>Dependentes</b>".$titular2_dependentes."</li><li><b>Rendimento</b>".$titular2_rendimento."</li><li><b>Penhora</b>".$titular2_penhora."</li></ul><h3>Dados de Contacto</h3><ul><li><b>Email: </b>".$titular_email."</li><li><b>Telefone</b>".$titular_phone."</li><li><b>Localidade</b>".$titular_local."</li></ul>";
But I need to add this result:
for ($y = 0; $y <= $numberOfRows; $y++){
for ($x = 0; $x < $maxData; $x++) {
array_push($row, $credito,
$capital_divida, $prestacao,
$bank, $garantias, $situacao);
echo $row[$x]."<br>";
}
array_push($fullData, $row);
}
This is my relevant code for this issue:
$row = array();
$fullData = array();
$maxData = 6;
$numberOfRows = htmlspecialchars(["numberOfRowsHTML"]);
$titular_email = htmlspecialchars($_POST["titular-email"]);
$titular_phone = htmlspecialchars($_POST["titular-phone"]);
$titular_local = htmlspecialchars($_POST["titular-local"]);
$titular_message = htmlspecialchars($_POST["titular-message"]);
$numberOfRows = htmlspecialchars(["numberOfRowsHTML"]);
$credito = htmlspecialchars(["credito"]);
$capital_divida = htmlspecialchars(["capital_div"]);
$prestacao = htmlspecialchars(["prestacao"]);
$bank = htmlspecialchars(["bank"]);
$garantias = htmlspecialchars(["garantias"]);
$situacao = htmlspecialchars(["situacao"]);
Thank you in advance for all the help

Answer 1

This code doesn't make any sense:
$numberOfRows = htmlspecialchars(["numberOfRowsHTML"]);
It looks like you're missing the name of an array you want to get this value from, for example:
$numberOfRows = htmlspecialchars($_POST["numberOfRowsHTML"]);
Your loop that assembles the array doesn't appear to do anything useful at all - you're getting values from the submission, then assembling an array which you don't use. It would be helpful if you could clarify what it is you're trying to do.