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How to use str_replace to replace single and double quotes

I need to create a login in a form where the user inserts the username and password. I have to ensure that html objects are not processed and I cannot allow single quotes or double quotes to be processed. I have to echo the data entered into the form and display it.

I have to use htmlentities and str_replace. I have htmlentities correct, but I'm not sure how to use the str_replace function to replace the single and double quotes that the user can enter into the form. Any help would be awesome.

Here is my current PHP (which is working)

<?php
$username = htmlspecialchars($_POST['username']);
$password    = htmlspecialchars($_POST['password']);
$comment = htmlspecialchars($_POST['comment']);
?>
<html>
<body>
Your username is: <?php echo $username; ?><br />
Your password: <?php echo $password; ?><br />
Your Comment was: <?php echo $comment; ?>

 

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7 replies


I think you want this way .. please check



$yourPostVariable = "scor\"pi'on";

//$name = str_replace(array("'", "\""), "", htmlspecialchars($yourPostVariable ) );

echo str_replace(array("'", "\"", "&quot;"), "", htmlspecialchars($yourPostVariable ) );
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$username = htmlentities(str_replace(array('"', "'"), '', $_POST['username']));


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 $keyItem = str_replace ("'","\'",$keyItem);

This replaces one quote with the "escaped" single quote.

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$username = str_replace(array("'", "\""), "", htmlspecialchars($_POST['username']));
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Try the below code to replace double quotes

str_replace(chr(34), "replace_with", $content);

For single quotes

str_replace("'", "replace_with", $content);
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To remove quotes you can use this:

$search = 'cars "black" in ...';
$search = str_replace("\"", "", $search);
// result: "cars black in ..."
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$username_test = $_POST['username'];
$username = str_replace(array("'", "\"", "&quot;"), "",htmlspecialchars($username_test) );


//same for password :)
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