PHP HTML Filter Code (pre-defined characters converted to HTML entities) _php Tutorial

Convert some of the predefined characters to HTML entities and precede predefined characters with backslashes, including single quotes, double quotes, backslashes, and NULL to secure the database

Convert some of the predefined characters to HTML entities and precede predefined characters with backslashes, including single quotes, double quotes, backslashes, and NULL to secure the database tutorial

function D_htmlspecialchars ($string) {
if (Is_array ($string)) {
foreach ($string as $key = = $val) {
$string [$key] = D_htmlspecialchars ($val);
}
} else {
$string = Str_replace (' & ', ' & ', $string);
$string = Str_replace (' "', '" ', $string);
$string = Str_replace (' ', ' ', $string);
$string = Str_replace (' < ', ' < ', $string);
$string = Str_replace (' > ', ' > ', $string);
$string = Preg_replace ('/& (#d;)/', ' &1 ', $string);
}
return $string;
}

//

function D_addslashes ($string, $force = 0) {
if (! $globals [' MAGIC_QUOTES_GPC '] | | $force) {
if (Is_array ($string)) {
foreach ($string as $key = + $val) $string [$key] = D_addslashes ($val, $force);
}
else $string = addslashes ($string);
}
return $string;
}

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