在echo中有一个if语句

Question

Can anyone tell me how I can include the if statement inside this echo? I need my while statement to keep producing results and I need an efficient way to insert the if statement into this code after div class poster, can someone give any suggestions?

while($row = $stmt->fetch(PDO::FETCH_ASSOC)){
echo ' 
<div class="wrapper">
<div class="submissions">
<div class="logo-logo"><h2>Question.</h2>
<div class="checkboxes">'.$row['formtype'].'
</div>

</div>
<div class="top-submit">
&#8220'. $row["actual_quote"] . '&#8221;
</div>
<div class="poster">- '. $row["poster"].'
if(isset($row3['voted'])){
if(isset($row3['ip'])){

    echo "You have already voted for this.";
}
}
else{

    echo "<form action = '' method = 'post'> <input type = 'submit' name = 'like' value = 'like'> <input type = 'submit' name = 'dislike' value = 'dislike'></form>";

}
<div class = "like">

</div>
<div class = "dislike">
</div>
</div>
<!-- use select to get the items to stay on the page-->

</div>
</div>
</div>
';
}

Answer 1

I would not output your HTML using echo. It makes the code harder to read and write due to you needing to constantly remember to not accidentally close your quote, not to mention it's a (small) waste of CPU cycles and memory.

Instead, break out of php to stream the content directly and only drop back into php for logic and echoing your variables. In addition, you should use htmlentities to encode what you're echoing out.

I assume $row3 may be further up in your code so I left that alone for keys voted and ip. You had an extra closing div in there which I removed.

<?php
while($row = $stmt->fetch(PDO::FETCH_ASSOC))
{
    ?>
<div class="wrapper">
    <div class="submissions">
        <div class="logo-logo"><h2>Question.</h2>
            <div class="checkboxes"><?php echo htmlentities($row["formtype"]); ?></div>
        </div>
        <div class="top-submit">
            &#8220;<?php echo htmlentities($row["actual_quote"]); ?>&#8221;
        </div>
        <div class="poster">- <?php echo htmlentities($row["poster"]);
    if(isset($row3["voted"]) && isset($row3["ip"]))
    {
        echo "You have already voted for this.";
    }
    else
    {
        ?>
            <form action="" method="post"> <input type="submit" name="like" value="like" /> <input type="submit" name="dislike" value="dislike" /></form>
        <?php
    }
    ?>
            <div class = "like"></div>
            <div class = "dislike"></div>
        </div>
        <!-- use select to get the items to stay on the page-->

    </div>
</div>
    <?php
}