[Bad Word Filter] Stay away from bad and offensive words #php #class #text

BadWordFilter.php

<?php

/* -------------------------------------------------------------------------- */  
/* [Bad Word Filter] Stay away from bad and offensive words #php #class #text */
/* -------------------------------------------------------------------------- */  

// the class
class BadWordFilter {

    // variable for storing bad words
    private $list;
    
    // this function will auto initialize the array where all bad words are listed - you can edit/add/remove any elements if necessary
    function __construct() {
        $bad_words = array('2 girls 1 cup','2g1c','4r5e','5h1t','5hit','a$$','a$$hole','a_s_s','a2m','a54','a55','a55hole','acrotomophilia','aeolus','ahole','alabama hot pocket','alaskan pipeline','anal','anal impaler','anal leakage','analprobe','anilingus','anus','apeshit','ar5e','areola','areole','arian','arrse','arse','arsehole','aryan','ass','ass fuck','ass fuck','ass hole','assbag','assbandit','assbang','assbanged','assbanger','assbangs','assbite','assclown','asscock','asscracker','asses','assface','assfaces','assfuck','assfucker','ass-fucker','assfukka','assgoblin','assh0le','asshat','ass-hat','asshead','assho1e','asshole','assholes','asshopper','ass-jabber','assjacker','asslick','asslicker','assmaster','assmonkey','assmucus','assmucus','assmunch','assmuncher','assnigger','asspirate','ass-pirate','assshit','assshole','asssucker','asswad','asswhole','asswipe','asswipes','auto erotic','autoerotic','axwound','azazel','azz','b!tch','b00bs','b17ch','b1tch','babeland','baby batter','baby juice','ball gag','ball gravy','ball kicking','ball licking','ball sack','ball sucking','ballbag','balls','ballsack','bampot','bang one\'s box','bangbros','bareback','barely legal','barenaked','barf','bastard','bastardo','bastards','bastinado','batty boy','bawdy','bbw','bdsm','beaner','beaners','beardedclam','beastial','beastiality','beatch','beaver','beaver cleaver','beaver lips','beef curtain','beef curtain','beef curtains','beeyotch','bellend','bender','beotch','bescumber','bestial','bestiality','bi+ch','biatch','big black','big breasts','big knockers','big tits','bigtits','bimbo','bimbos','bint','birdlock','bitch','bitch tit','bitch tit','bitchass','bitched','bitcher','bitchers','bitches','bitchin','bitching','bitchtits','bitchy','black cock','blonde action','blonde on blonde action','bloodclaat','bloody','bloody hell','blow job','blow me','blow mud','blow your load','blowjob','blowjobs','blue waffle','blue waffle','blumpkin','blumpkin','bod','bodily','boink','boiolas','bollock','bollocks','bollok','bollox','bondage','boned','boner','boners','bong','boob','boobies','boobs','booby','booger','bookie','boong','booobs','boooobs','booooobs','booooooobs','bootee','bootie','booty','booty call','booze','boozer','boozy','bosom','bosomy','breasts','Breeder','brotherfucker','brown showers','brunette action','buceta','bugger','bukkake','bull shit','bulldyke','bullet vibe','bullshit','bullshits','bullshitted','bullturds','bum','bum boy','bumblefuck','bumclat','bummer','buncombe','bung','bung hole','bunghole','bunny fucker','bust a load','bust a load','busty','butt','butt fuck','butt fuck','butt plug','buttcheeks','buttfuck','buttfucka','buttfucker','butthole','buttmuch','buttmunch','butt-pirate','buttplug','c.0.c.k','c.o.c.k.','c.u.n.t','c0ck','c-0-c-k','c0cksucker','caca','cacafuego','cahone','camel toe','cameltoe','camgirl','camslut','camwhore','carpet muncher','carpetmuncher','cawk','cervix','chesticle','chi-chi man','chick with a dick','child-fucker','chinc','chincs','chink','chinky','choad','choade','choade','choc ice','chocolate rosebuds','chode','chodes','chota bags','chota bags','cipa','circlejerk','cl1t','cleveland steamer','climax','clit','clit licker','clit licker','clitface','clitfuck','clitoris','clitorus','clits','clitty','clitty litter','clitty litter','clover clamps','clunge','clusterfuck','cnut','cocain','cocaine','coccydynia','cock','c-o-c-k','cock pocket','cock pocket','cock snot','cock snot','cock sucker','cockass','cockbite','cockblock','cockburger','cockeye','cockface','cockfucker','cockhead','cockholster','cockjockey','cockknocker','cockknoker','Cocklump','cockmaster','cockmongler','cockmongruel','cockmonkey','cockmunch','cockmuncher','cocknose','cocknugget','cocks','cockshit','cocksmith','cocksmoke','cocksmoker','cocksniffer','cocksuck','cocksuck','cocksucked','cocksucked','cocksucker','cock-sucker','cocksuckers','cocksucking','cocksucks','cocksucks','cocksuka','cocksukka','cockwaffle','coffin dodger','coital','cok','cokmuncher','coksucka','commie','condom','coochie','coochy','coon','coonnass','coons','cooter','cop some wood','cop some wood','coprolagnia','coprophilia','corksucker','cornhole','cornhole','corp whore','corp whore','corpulent','cox','crabs','crack','cracker','crackwhore','crap','crappy','creampie','cretin','crikey','cripple','crotte','cum','cum chugger','cum chugger','cum dumpster','cum dumpster','cum freak','cum freak','cum guzzler','cum guzzler','cumbubble','cumdump','cumdump','cumdumpster','cumguzzler','cumjockey','cummer','cummin','cumming','cums','cumshot','cumshots','cumslut','cumstain','cumtart','cunilingus','cunillingus','cunnie','cunnilingus','cunny','cunt','c-u-n-t','cunt hair','cunt hair','cuntass','cuntbag','cuntbag','cuntface','cunthole','cunthunter','cuntlick','cuntlick','cuntlicker','cuntlicker','cuntlicking','cuntlicking','cuntrag','cunts','cuntsicle','cuntsicle','cuntslut','cunt-struck','cunt-struck','cus','cut rope','cut rope','cyalis','cyberfuc','cyberfuck','cyberfuck','cyberfucked','cyberfucked','cyberfucker','cyberfuckers','cyberfucking','cyberfucking','d0ng','d0uch3','d0uche','d1ck','d1ld0','d1ldo','dago','dagos','dammit','damn','damned','damnit','darkie','darn','date rape','daterape','dawgie-style','deep throat','deepthroat','deggo','dendrophilia','dick','dick head','dick hole','dick hole','dick shy','dick shy','dickbag','dickbeaters','dickdipper','dickface','dickflipper','dickfuck','dickfucker','dickhead','dickheads','dickhole','dickish','dick-ish','dickjuice','dickmilk','dickmonger','dickripper','dicks','dicksipper','dickslap','dick-sneeze','dicksucker','dicksucking','dicktickler','dickwad','dickweasel','dickweed','dickwhipper','dickwod','dickzipper','diddle','dike','dildo','dildos','diligaf','dillweed','dimwit','dingle','dingleberries','dingleberry','dink','dinks','dipship','dipshit','dirsa','dirty','dirty pillows','dirty sanchez','dirty Sanchez','div','dlck','dog style','dog-fucker','doggie style','doggiestyle','doggie-style','doggin','dogging','doggy style','doggystyle','doggy-style','dolcett','domination','dominatrix','dommes','dong','donkey punch','donkeypunch','donkeyribber','doochbag','doofus','dookie','doosh','dopey','double dong','double penetration','Doublelift','douch3','douche','douchebag','douchebags','douche-fag','douchewaffle','douchey','dp action','drunk','dry hump','duche','dumass','dumb ass','dumbass','dumbasses','Dumbcunt','dumbfuck','dumbshit','dummy','dumshit','dvda','dyke','dykes','eat a dick','eat a dick','eat hair pie','eat hair pie','eat my ass','ecchi','ejaculate','ejaculated','ejaculates','ejaculates','ejaculating','ejaculating','ejaculatings','ejaculation','ejakulate','erect','erection','erotic','erotism','escort','essohbee','eunuch','extacy','extasy','f u c k','f u c k e r','f.u.c.k','f_u_c_k','f4nny','facial','fack','fag','fagbag','fagfucker','fagg','fagged','fagging','faggit','faggitt','faggot','faggotcock','faggots','faggs','fagot','fagots','fags','fagtard','faig','faigt','fanny','fannybandit','fannyflaps','fannyfucker','fanyy','fart','fartknocker','fatass','fcuk','fcuker','fcuking','fecal','feck','fecker','feist','felch','felcher','felching','fellate','fellatio','feltch','feltcher','female squirting','femdom','fenian','fice','figging','fingerbang','fingerfuck','fingerfuck','fingerfucked','fingerfucked','fingerfucker','fingerfucker','fingerfuckers','fingerfucking','fingerfucking','fingerfucks','fingerfucks','fingering','fist fuck','fist fuck','fisted','fistfuck','fistfucked','fistfucked','fistfucker','fistfucker','fistfuckers','fistfuckers','fistfucking','fistfucking','fistfuckings','fistfuckings','fistfucks','fistfucks','fisting','fisty','flamer','flange','flaps','fleshflute','flog the log','flog the log','floozy','foad','foah','fondle','foobar','fook','fooker','foot fetish','footjob','foreskin','freex','frenchify','frigg','frigga','frotting','fubar','fuc','fuck','fuck','f-u-c-k','fuck buttons','fuck hole','fuck hole','Fuck off','fuck puppet','fuck puppet','fuck trophy','fuck trophy','fuck yo mama','fuck yo mama','fuck you','fucka','fuckass','fuck-ass','fuck-ass','fuckbag','fuck-bitch','fuck-bitch','fuckboy','fuckbrain','fuckbutt','fuckbutter','fucked','fuckedup','fucker','fuckers','fuckersucker','fuckface','fuckhead','fuckheads','fuckhole','fuckin','fucking','fuckings','fuckingshitmotherfucker','fuckme','fuckme','fuckmeat','fuckmeat','fucknugget','fucknut','fucknutt','fuckoff','fucks','fuckstick','fucktard','fuck-tard','fucktards','fucktart','fucktoy','fucktoy','fucktwat','fuckup','fuckwad','fuckwhit','fuckwit','fuckwitt','fudge packer','fudgepacker','fudge-packer','fuk','fuker','fukker','fukkers','fukkin','fuks','fukwhit','fukwit','fuq','futanari','fux','fux0r','fvck','fxck','gae','gai','gang bang','gangbang','gang-bang','gang-bang','gangbanged','gangbangs','ganja','gash','gassy ass','gassy ass','gay','gay sex','gayass','gaybob','gaydo','gayfuck','gayfuckist','gaylord','gays','gaysex','gaytard','gaywad','gender bender','genitals','gey','gfy','ghay','ghey','giant cock','gigolo','ginger','gippo','girl on','girl on top','girls gone wild','git','glans','goatcx','goatse','god','god damn','godamn','godamnit','goddam','god-dam','goddammit','goddamn','goddamned','god-damned','goddamnit','godsdamn','gokkun','golden shower','goldenshower','golliwog','gonad','gonads','goo girl','gooch','goodpoop','gook','gooks','goregasm','gringo','grope','group sex','gspot','g-spot','gtfo','guido','guro','h0m0','h0mo','ham flap','ham flap','hand job','handjob','hard core','hard on','hardcore','hardcoresex','he11','hebe','heeb','hell','hemp','hentai','heroin','herp','herpes','herpy','heshe','he-she','hircismus','hitler','hiv','ho','hoar','hoare','hobag','hoe','hoer','holy shit','hom0','homey','homo','homodumbshit','homoerotic','homoey','honkey','honky','hooch','hookah','hooker','hoor','hootch','hooter','hooters','hore','horniest','horny','hot carl','hot chick','hotsex','how to kill','how to murdep','how to murder','huge fat','hump','humped','humping','hun','hussy','hymen','iap','iberian slap','inbred','incest','injun','intercourse','jack off','jackass','jackasses','jackhole','jackoff','jack-off','jaggi','jagoff','jail bait','jailbait','jap','japs','jelly donut','jerk','jerk off','jerk0ff','jerkass','jerked','jerkoff','jerk-off','jigaboo','jiggaboo','jiggerboo','jism','jiz','jiz','jizm','jizm','jizz','jizzed','jock','juggs','jungle bunny','junglebunny','junkie','junky','kafir','kawk','kike','kikes','kill','kinbaku','kinkster','kinky','klan','knob','knob end','knobbing','knobead','knobed','knobend','knobhead','knobjocky','knobjokey','kock','kondum','kondums','kooch','kooches','kootch','kraut','kum','kummer','kumming','kums','kunilingus','kunja','kunt','kwif','kwif','kyke','l3i+ch','l3itch','labia','lameass','lardass','leather restraint','leather straight jacket','lech','lemon party','LEN','leper','lesbian','lesbians','lesbo','lesbos','lez','lezza/lesbo','lezzie','lmao','lmfao','loin','loins','lolita','looney','lovemaking','lube','lust','lusting','lusty','m0f0','m0fo','m45terbate','ma5terb8','ma5terbate','mafugly','mafugly','make me come','male squirting','mams','masochist','massa','masterb8','masterbat*','masterbat3','masterbate','master-bate','master-bate','masterbating','masterbation','masterbations','masturbate','masturbating','masturbation','maxi','mcfagget','menage a trois','menses','menstruate','menstruation','meth','m-fucking','mick','microphallus','middle finger','midget','milf','minge','minger','missionary position','mof0','mofo','mo-fo','molest','mong','moo moo foo foo','moolie','moron','mothafuck','mothafucka','mothafuckas','mothafuckaz','mothafucked','mothafucked','mothafucker','mothafuckers','mothafuckin','mothafucking','mothafucking','mothafuckings','mothafucks','mother fucker','mother fucker','motherfuck','motherfucka','motherfucked','motherfucker','motherfuckers','motherfuckin','motherfucking','motherfuckings','motherfuckka','motherfucks','mound of venus','mr hands','muff','muff diver','muff puff','muff puff','muffdiver','muffdiving','munging','munter','murder','mutha','muthafecker','muthafuckker','muther','mutherfucker','n1gga','n1gger','naked','nambla','napalm','nappy','nawashi','nazi','nazism','need the dick','need the dick','negro','neonazi','nig nog','nigaboo','nigg3r','nigg4h','nigga','niggah','niggas','niggaz','nigger','niggers','niggle','niglet','nig-nog','nimphomania','nimrod','ninny','ninnyhammer','nipple','nipples','nob','nob jokey','nobhead','nobjocky','nobjokey','nonce','nsfw images','nude','nudity','numbnuts','nut butter','nut butter','nut sack','nutsack','nutter','nympho','nymphomania','octopussy','old bag','omg','omorashi','one cup two girls','one guy one jar','opiate','opium','orally','organ','orgasim','orgasims','orgasm','orgasmic','orgasms','orgies','orgy','ovary','ovum','ovums','p.u.s.s.y.','p0rn','paedophile','paki','panooch','pansy','pantie','panties','panty','pawn','pcp','pecker','peckerhead','pedo','pedobear','pedophile','pedophilia','pedophiliac','pee','peepee','pegging','penetrate','penetration','penial','penile','penis','penisbanger','penisfucker','penispuffer','perversion','phallic','phone sex','phonesex','phuck','phuk','phuked','phuking','phukked','phukking','phuks','phuq','piece of shit','pigfucker','pikey','pillowbiter','pimp','pimpis','pinko','piss','piss off','piss pig','pissed','pissed off','pisser','pissers','pisses','pisses','pissflaps','pissin','pissin','pissing','pissoff','pissoff','piss-off','pisspig','playboy','pleasure chest','pms','polack','pole smoker','polesmoker','pollock','ponyplay','poof','poon','poonani','poonany','poontang','poop','poop chute','poopchute','Poopuncher','porch monkey','porchmonkey','porn','porno','pornography','pornos','pot','potty','prick','pricks','prickteaser','prig','prince albert piercing','prod','pron','prostitute','prude','psycho','pthc','pube','pubes','pubic','pubis','punani','punanny','punany','punkass','punky','punta','puss','pusse','pussi','pussies','pussy','pussy fart','pussy fart','pussy palace','pussy palace','pussylicking','pussypounder','pussys','pust','puto','queaf','queaf','queef','queer','queerbait','queerhole','queero','queers','quicky','quim','racy','raghead','raging boner','rape','raped','raper','rapey','raping','rapist','raunch','rectal','rectum','rectus','reefer','reetard','reich','renob','retard','retarded','reverse cowgirl','revue','rimjaw','rimjob','rimming','ritard','rosy palm','rosy palm and her 5 sisters','rtard','r-tard','rubbish','rum','rump','rumprammer','ruski','rusty trombone','s hit','s&m','s.h.i.t.','s.o.b.','s_h_i_t','s0b','sadism','sadist','sambo','sand nigger','sandbar','sandbar','Sandler','sandnigger','sanger','santorum','sausage queen','sausage queen','scag','scantily','scat','schizo','schlong','scissoring','screw','screwed','screwing','scroat','scrog','scrot','scrote','scrotum','scrud','scum','seaman','seamen','seduce','seks','semen','sex','sexo','sexual','sexy','sh!+','sh!t','sh1t','s-h-1-t','shag','shagger','shaggin','shagging','shamedame','shaved beaver','shaved pussy','shemale','shi+','shibari','shirt lifter','shit','s-h-i-t','shit ass','shit fucker','shit fucker','shitass','shitbag','shitbagger','shitblimp','shitbrains','shitbreath','shitcanned','shitcunt','shitdick','shite','shiteater','shited','shitey','shitface','shitfaced','shitfuck','shitfull','shithead','shitheads','shithole','shithouse','shiting','shitings','shits','shitspitter','shitstain','shitt','shitted','shitter','shitters','shitters','shittier','shittiest','shitting','shittings','shitty','shiz','shiznit','shota','shrimping','sissy','skag','skank','skeet','skullfuck','slag','slanteye','slave','sleaze','sleazy','slope','slope','slut','slut bucket','slut bucket','slutbag','slutdumper','slutkiss','sluts','smartass','smartasses','smeg','smegma','smut','smutty','snatch','sniper','snowballing','snuff','s-o-b','sod off','sodom','sodomize','sodomy','son of a bitch','son of a motherless goat','son of a whore','son-of-a-bitch','souse','soused','spac','spade','sperm','spic','spick','spik','spiks','splooge','splooge moose','spooge','spook','spread legs','spunk','stfu','stiffy','stoned','strap on','strapon','strappado','strip','strip club','stroke','stupid','style doggy','suck','suckass','sucked','sucking','sucks','suicide girls','sultry women','sumofabiatch','swastika','swinger','t1t','t1tt1e5','t1tties','taff','taig','tainted love','taking the piss','tampon','tard','tart','taste my','tawdry','tea bagging','teabagging','teat','teets','teez','teste','testee','testes','testical','testicle','testis','threesome','throating','thrust','thug','thundercunt','tied up','tight white','tinkle','tit','tit wank','tit wank','titfuck','titi','tities','tits','titt','tittie5','tittiefucker','titties','titty','tittyfuck','tittyfucker','tittywank','titwank','toke','tongue in a','toots','topless','tosser','towelhead','tramp','tranny','transsexual','trashy','tribadism','trumped','tub girl','tubgirl','turd','tush','tushy','tw4t','twat','twathead','twatlips','twats','twatty','twatwaffle','twink','twinkie','two fingers','two fingers with tongue','two girls one cup','twunt','twunter','ugly','unclefucker','undies','undressing','unwed','upskirt','urethra play','urinal','urine','urophilia','uterus','uzi','v14gra','v1gra','vag','vagina','vajayjay','va-j-j','valium','venus mound','veqtable','viagra','vibrator','violet wand','virgin','vixen','vjayjay','vodka','vomit','vorarephilia','voyeur','vulgar','vulva','w00se','wad','wang','wank','wanker','wankjob','wanky','wazoo','wedgie','weed','weenie','weewee','weiner','weirdo','wench','wet dream','wetback','wh0re','wh0reface','white power','whiz','whoar','whoralicious','whore','whorealicious','whorebag','whored','whoreface','whorehopper','whorehouse','whores','whoring','wigger','willies','willy','window licker','wiseass','wiseasses','wog','womb','wop','wrapping men','wrinkled starfish','wtf','xrated','x-rated','xx','xxx','yaoi','yeasty','yellow showers','yid','yiffy','yobbo','zibbi','zoophilia','zubb');
        $this->list = $bad_words; // store bad words array to the variable for later usage
    }

    // this function will determine if given word (string) is a bad word or not and will return boolean
    function isBadWord($word) {
        if (in_array(strtolower($word),$this->list)) return true; // given $word is a bad word
        else return false;
    }

    // this function will return the bad words list as an array upon call
    function getList() {
        return $this->list;
    }

    // this is an auxiliary function which extracts words from string - usefull for extracting words from user inputs e.g. user comments
    function getWords($string) {
        return preg_split('/\s+/', $string); // breaks string and returns words from strings - extra whitespaces are ignored
    }

    // function to get any bad word's length - useful when you want to do some custom filtering
    function getWordlength($word) {
        if ($this->isBadWord($word)) return strlen($word);
        else return 0; // returns 0 if the given string isn't a bad word
    }

    // this function replace bad word's chracters with other characters. asterisk (*) icon is the default.
    // pass your desired character in second parameter - replaced characters will be in exact length of given string's length
    function filterBadWord($word, $delimiter='') {
        if (!empty($delimiter) && strlen($delimiter)!=1) $delimiter = ''; // if the delimiter character is not a single character
        if ($this->isBadWord($word)) {
            if (empty($delimiter)) $delimiter = '*';
            $replace = '';
            for ($i=0; $i < $this->getWordlength($word); $i++)
                $replace .= $delimiter;
            return str_replace($word, $replace, $word);
        }
    }

    // this function replace bad word from array - pass your desired character in second parameter
    // replaced characters will be in exact length of given string's length
    function filterBadWords($words, $delimiter='') {
        if (!is_array($words)) return false; // the words must be passed as array
        else {
            if (!empty($delimiter) && strlen($delimiter)!=1) $delimiter = ''; // if the desired character is not a single character
            $string = '';
            foreach ($words as $word) {
                if (!$this->isBadWord($word))
                    $string .= $word.' ';
                else {
                    if (empty($delimiter)) $delimiter = '*';
                    $replace = '';
                    for ($i=0; $i < $this->getWordlength($word); $i++)
                        $replace .= $delimiter;
                    $string .= str_replace($word,$replace,$word);
                }
            }
            return trim($string);
        }
    }

    // this function will return an alphanumeric string from given string - helpul when you want to trim a word
    function sanitizeWord($word) {
        return preg_replace("/[^a-zA-Z0-9]+/", '', $word);
    }
}

// initialize the class
$filter = new BadWordFilter();
?>
<!DOCTYPE html>
  <html lang="en-US">
    <head>
      <meta charset="utf-8"/>
      <title>BadWordFilter Class</title>
      <meta name="viewport" content="width=device-width, initial-scale=1"/>
      <style>
        body  { font-family: Arial;    color: black; background-color: white;  padding: 33px 33%; }
        h1    { font-family: Verdana;  color: navy; }
        h2    { text-decoration: bold; color: crimson; }
        small { font-family: monospace;color: grey; font-size: 1.5em; margin-top: 33px; }
      </style>
  </head>
  <body>
    <h1>BadWordFilter Class</h1>
    <?php

      // examples of isBadWord() - check if a word is bad or not
      echo '<h2>Usage example of isBadWord("suck") and isBadWord("duck")</h2>';
      if ($filter->isBadWord('suck')) echo '"suck" is a bad word!<br>'; // this will be output
      else echo '"suck" is not a bad word!<br>';
      if ($filter->isBadWord('duck')) echo '"duck" is a bad word!<br><br>';
      else echo '"duck" is not a bad word!<br><br>'; // this will be output

      // example of getList() - get list of all bad words
      echo '<h2>Usage example of getList()</h2>';
      echo 'Here are all bad words listed bellow:<br><textarea style="width:80%;height:250px;">';
      print_r($filter->getList());
      echo '</textarea><br>';

      // examples of getWords() and filterBadWords() - get words from a sentence (string)
      echo '<h2>Usage example of getWords("Well this script sucks") and filterBadWords(getWords("Well this script sucks"))</h2>';
      $words = $filter->getWords('Well this script sucks');
      // print raw array
      echo 'Words extracted from "Well this script sucks" (raw):<br>';
      print_r($words);
      echo '<br><br>Words extracted from "Well this script sucks" and printed with filtering as sentence:<br>';
      // return the same string but with filtered words
      echo $filter->filterBadWords($words);
      echo '<br><br>';

      // example of getWordlength() - get any bad word's character length
      echo '<h2>Usage example of getWordlength()</h2>';
      echo 'There are '.$filter->getWordlength('suck').' characters in the word "suck"<br><br>';

      // example of filterBadWord() - this is the most important function of the class
      echo '<h2>Usage example of filterBadWord("suck","?")</h2>';
      echo 'The word "suck" turns to "';
      if($filter->isBadWord('suck')) echo $filter->filterBadWord('suck','?');
      else echo 'suck';
      echo '" after filtering<br><br>';

      // example of sanitizeWord() - this is a helper function to get a alphanumeric word (string) from mixed character string
      echo '<h2>Usage example of sanitizeWord("s-u-c-k")</h2>';
      echo 'The word "s-u-c-k" turns to "';
      print_r($filter->sanitizeWord('s-u-c-k'));
      echo '" after sanitizing<br><br>';
    ?>
    <strong>Note:</strong> <br>
    Excuse me for using bad words for the example, <br>
    but for the purpose of demonstration I unfortunately have to do so. <br>
    <br>
    <small>code by adilbo</small>
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