write PHP inside HTML inside PHP - php

Question

in trying to put in php code inside html that inside php,
my goal is to full this select option with an array
<?php
$wcr=array(
'Angola',
'Antigua & Barbuda',
'Armenia',
'Austria',
'Azerbaijan',
);
$content = '<div class="row">
<form role="form">
<div class="form-group">
<label for="exampleInputName1">Name</label>
<select name="country"><option selected value="">'
<? $p=1;asort($wcr);reset($wcr);
while (list ($p, $val) = each ($wcr)) {
echo '<option value="'.$p.'">'.$val;
} ?>
'</select>
</div>
<input type="button" class="btn btn-primary" onClick="AddDoctor()"
value="Submit"></input>
</form>
</div>';
?>
i tried a different approach but nothing seems to work

Answer 1

Your PHP isn't inside the HTML. You ended the quoted string, so you're still in PHP execution mode, you don't need <?php again.
The loop shouldn't use echo, it should append to the $content string.
Also, each() has been deprecated, you should use a foreach loop.
<?php
$wcr=array(
'Angola',
'Antigua & Barbuda',
'Armenia',
'Austria',
'Azerbaijan',
);
$content = '<div class="row">
<form role="form">
<div class="form-group">
<label for="exampleInputName1">Name</label>
<select name="country"><option selected value="">';
asort($wcr);
foreach ($wcr as $p => $val) {
$content .= '<option value="'.$p.'">'.$val.'</option>';
}
$content .= '</select>
</div>
<input type="button" class="btn btn-primary" onClick="AddDoctor()"
value="Submit"></input>
</form>
</div>';
?>