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Deprecate checkdnsrr from is_email. Unused in core, and wonky on some server setups (Mac OS X < PHP 5.3 specifically). A plugin can always add it back. props technosailor, fixes #12503. 

git-svn-id: http://svn.automattic.com/wordpress/trunk@14381 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
nacin 2010-05-03 18:54:37 +00:00
parent 49e39c3b59
commit b63ee5748a
1 changed files with 5 additions and 8 deletions
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13
wp-includes/formatting.php
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@ -1465,10 +1465,13 @@ function convert_smilies($text) {
* @since 0.71
*
* @param string $email Email address to verify.
* @param boolean $check_dns Whether to check the DNS for the domain using checkdnsrr().
* @param boolean $deprecated. Deprecated.
* @return string|bool Either false or the valid email address.
*/
function is_email( $email, $check_dns = false ) {
function is_email( $email, $deprecated = false ) {
if ( ! empty( $deprecated ) )
_deprecated_argument( __FUNCTION__, '3.0' );
// Test for the minimum length the email can be
if ( strlen( $email ) < 3 ) {
return apply_filters( 'is_email', false, $email, 'email_too_short' );
@ -1520,12 +1523,6 @@ function is_email( $email, $check_dns = false ) {
}
}
// DNS
// Check the domain has a valid MX and A resource record
if ( $check_dns && function_exists( 'checkdnsrr' ) && !( checkdnsrr( $domain . '.', 'MX' ) || checkdnsrr( $domain . '.', 'A' ) ) ) {
return apply_filters( 'is_email', false, $email, 'dns_no_rr' );
}
// Congratulations your email made it!
return apply_filters( 'is_email', $email, $email, null );
}