PHP Snippet 1:
$minFill = 4;
echo preg_replace_callback(
'/^(.)(.*?)([^@]?)(?=@[^@]+$)/u',
function ($m) use ($minFill) {
return $m[1]
. str_repeat("*", max($minFill, mb_strlen($m[2], 'UTF-8')))
. ($m[3] ?: $m[1]);
},
$email
);
PHP Snippet 2:
'[email protected]' => 'a****[email protected]',
'[email protected]' => 'a****[email protected]',
'[email protected]' => 'a****[email protected]',
'[email protected]' => 'a****[email protected]',
'[email protected]' => 'a****[email protected]',
'[email protected]' => 'a****[email protected]',
'[email protected]' => 'a*****[email protected]',
'[email protected]' => '?****[email protected]',
'[email protected]' => '?****[email protected]',
'[email protected]' => '?****[email protected]',
'[email protected]' => '?*****[email protected]',
'"a@tricky@one"@example.com' => '"************"@example.com',
PHP Snippet 3:
/ #pattern delimiter
^ #start of string
(.) #capture group #1 containing the first character
(.*?) #capture group #2 containing zero or more characters (lazy, aka non-greedy)
([^@]?) #capture group #3 containing an optional single non-@ character
(?=@[^@]+$) #require that the next character is @ then one or more @ until the end of the string
/ #pattern delimiter
u #unicode/multibyte pattern modifier
PHP Snippet 5:
$stars = 4; // Min Stars to use
$at = strpos($em,'@');
if($at - 2 > $stars) $stars = $at - 2;
print substr($em,0,1) . str_repeat('*',$stars) . substr($em,$at - 1);
PHP Snippet 6:
$email = "[email protected]";
print preg_replace_callback('/(\w)(.*?)(\w)(@.*?)$/s', function ($matches){
return $matches[1].preg_replace("/\w/", "*", $matches[2]).$matches[3].$matches[4];
}, $email);
# a****[email protected]
PHP Snippet 7:
<?php
$string='[email protected]';
preg_match('/^.\K[a-zA-Z\.0-9]+(?=.@)/',$string,$matches);//here we are gathering this part bced
$replacement= implode("",array_fill(0,strlen($matches[0]),"*"));//creating no. of *'s
echo preg_replace('/^(.)'.preg_quote($matches[0])."/", '$1'.$replacement, $string);
PHP Snippet 8:
<?php
function hide_email($email) {
// extract email text before @ symbol
$em = explode("@", $email);
$name = implode(array_slice($em, 0, count($em) - 1), '@');
// count half characters length to hide
$length = floor(strlen($name) / 2);
// Replace half characters with * symbol
return substr($name, 0, $length) . str_repeat('*', $length) . "@" . end($em);
}
echo hide_email("[email protected]");
?>
