There aren't any security holes in e-mailing a print_r of a POST, are there?

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The "normal" security issues with email are well known: always vet anything going into the header to prevent header injection; most simply by removing new line characters (or rejecting if any are sent: means someone's hacking/testing). This isn't a concern you've raised., Meta Stack Overflow ,There aren't any security holes in this kind of code are there? I've been using it everywhere but wanted to make sure I'm not leaving vulnerabilities around., 1 Another security aspect to mention is Cross Site Request Forgery. An attacker could embed a Image which causes your mail-reader or browser to make a request to another site. You can find further details about this flaw at Wikipedia – bratkartoffel Jun 2 '15 at 13:55

You should take good care of $headers and $from_address as those can easily be exploited for Email Injection attacks.

$headers

You should take good care of $headers and $from_address as those can easily be exploited for Email Injection attacks.

$from_address
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This function tries to return a string with all NULL bytes, HTML and PHP tags stripped from a given string. It uses the same tag stripping state machine as the fgetss() function. ,strip_tags — Strip HTML and PHP tags from a string, HTML comments and PHP tags are also stripped. This is hardcoded and can not be changed with allowed_tags. , Tag names within the input HTML that are greater than 1023 bytes in length will be treated as though they are invalid, regardless of the allowed_tags parameter.

Test paragraph. Other text
<p>Test paragraph.</p> <a href="#fragment">Other text</a>
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Various attempts were undertaken to address these problems.,A rootkit is software that is designed to allow an attacker to access a computer and hide the existence of the software … and sometimes hide the presence of the user on the system.,An application sandbox will allow us to create policies that define which system calls are permissible to the application and in what way they can be used.,Insert the U2F key and touch the button. This validates the user’s physical presence and runs the client protocol.

As we saw, buffer overflow occurs because of programming bugs: the programmer neglected to make sure that the data written to a buffer does not overflow. This often occurs because the programmer used old, unsafe functions that do not allow the programmer to specify limits. Common functions include:

-strcpy(char * dest, char * src)

   -
   strcat(char * dest, char * src)

   -
   sprintf(char * format, ...)
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I want to use PHPMailer security features when sending email via HTML Forms from static HTML webpages.,      2.Is there any settings that as to change in cpanel??,// When sending email using PHPMailer, you need to send from a valid email address,      3.Is there any settings that as to change in gmail??

composer require phpmailer / phpmailer
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This example shows utf8 which is considered the WordPress default value:,The WordPress default DB_COLLATE value:,Note: This is an example of a default wp-config-sample.php. The values here are examples to show you what to do.,There are two ways to upgrade using SSH2.

Note: This is an example of a default wp-config-sample.php. The values here are examples to show you what to do.

// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define('DB_NAME', 'database_name_here');
/** MySQL database username */
define('DB_USER', 'username_here');
/** MySQL database password */
define('DB_PASSWORD', 'password_here');
/** MySQL hostname */
define('DB_HOST', 'localhost');
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