I am trying to check if domain name contain blacklisted words.Below is my code so far
function teststringforbadwords($string,$banned_words) {
foreach($banned_words as $banned_word) {
if(stristr($string,$banned_word)){
return false;
}
}
return true;
}
$banned_words= array("casino","payday","prescription");
if (teststringforbadwords("casino123.com",$banned_words)) {
echo "banned word found";
continue;
}
Above code works for casino.com but not casino123.com , Any help will be appreciated.
Note : this is not duplicate The question mentioned just check for 1 word , I am checking array of words here.
The condition is pretty much the opposite, should be:
foreach($banned_words as $banned_word) {
if(stristr($string,$banned_word) !== false){
return true;
}
}
return false;
I think your logic is backwards. You want to return true if the banned word is found, right?
if(stristr($string,$banned_word)){
return true;
}
...because, when you call the function you say:
if(teststringforbadwords("casino123.com",$banned_words)){
echo "banned word found";
}
Related
The problem is with this line:
if $var LIKE '1800%';
and I'm not sure how to fix it. Thanks.
<?php
//check to see if account number is like 1800*
if (isset($_POST['acct_number'])) {
$var = $_POST['acct_number'];
if $var LIKE '1800%'; {
//stop the code
exit;
} else {
echo 'normal account number';
}
}
?>
You need PHP not MySQL. For 1800% just check that it is found at position 0:
if(strpos($var, '1800') === 0) {
//stop the code
exit;
} else {
echo 'normal account number';
}
If it can occur anywhere like %1800% then:
if(strpos($var, '1800') !== false) {
//stop the code
exit;
} else {
echo 'normal account number';
}
Use substr function to get first 4 characters and compare it with 1800.
if(substr($var, 0, 4) == '1800')
{
// your code goes here.
}
``
Another way could be to use strpos()
if (strpos($var, '1800') === 0) {
// var starts with '1800'
}
I would use a regular expression for this preg_match('/^1800.+/', $search, $matches);
I have the below code for matching an email address using regular expression rules.
It works well, but I've recently noticed that it seems to match a "Blank" email address.
if (preg_match("/.* <.*#.*\..*>/i",$this->to,$matches)) {
$this->email_to = preg_replace("/.*<(.*)>.*/","$1",$this->to);
} else {
$this->email_to = $this->to;
}
My understanding of the preg_match is:-
Looks for any character, except a line break
< anycharacter#anything.anything >
Case-insensitive?
Following those rules, I can't quite work out why it matches a blank / no email address if someone can give some guidance.
Thank you.
No needs for preg_match + preg_replace.
if (empty($this->to)) {
$this->email_to = 'Is empty'; # assign what you want
} elseif (preg_match("/<(.+?#.+?\..+?)>/", $this->to, $matches)) {
$this->email_to = $matches[1];
} else {
$this->email_to = $this->to;
}
I don't know why it behaves like that but an easy solution is to ask if the string is blank
if (preg_match("/.* <.*#.*\..*>/i",$this->to,$matches)) {
if ($matches != ""){
$this->email_to = preg_replace("/.*<(.*)>.*/","$1",$this->to);
} else { $this->email_to = $this->to; }
} else {
$this->email_to = $this->to;
}
I need a function which check string which is basically price of an item. And it must be like 1-5 characters,2 characters.
Example:
99,99€ == GOOD
99,9€ == BAD
999999,99€ == BAD
Regards!
if (preg_match("~^\\d{1,5}+(:\\,\\d{1,2})$~", $number)) {
return true;
} else {
return false;
}
This will work best for price.
Don't forget you must not allow prices starting with more than one 0 like 000,99 or 0999,99
if(preg_match('/^(?:0|[1-9]\d*)(?:\,\d{2})?$/', $number))
{
return true;
}
else
{
return false;
}
Try this....
<?php
$regex = '/^[\d]{1,5},[\d]{2}$/';
$price = '12321,12';
var_dump( preg_match($regex, $price) );
my problem is, i have a form which i fill blabla and after i submit i need to check if the var '$number' contains only 9 numbers. which means that if it contains at least 1 letter or has less or more than 9 length it should return false, else it should return true;
this is what i got so far:
if (!is_numeric ($number) {
//do
} else {
}
1st problem: This code should take care of the only numbers part but it doesnt, it always returns false.
2nd: do you guys know of any way to take care of the 9 digits only verification?
thanks and sorry for my bad english, not my native language :P
Your number may contain unwanted whitespaces which cause the is_numeric() test not to work properly
So do the following: $number = trim($number); to remove them.
Then indeed this snippet is good to check if your variable is a number:
if (!is_numeric ($number)) {
//do
} else {
}
And for the number digits do a if statement to see if your number is between 100000000 and 999999999
So the full code will be:
$number = trim($number);
if (!is_numeric ($number)) {
//do
} else {
if ($number >= 100000000 && $number <= 999999999) {
// Everything is ok
} else {
}
}
Didn't understood your complete question coz of you native language :p, but i think you want this:
if (is_numeric($number) {
if(strlen($number) == 9){
return true;
} else {
return false;
}
} else {
echo 'Not a number';
}
Check if it contains digits and check whether its exactly contains 9.
$number = '123456789';
if(!preg_match('/^\d{9}$/', $number)) {
echo 'not ok';
} else {
echo 'ok';
}
I've some problems with handling Boolean values in PHP. It is a validation script before storing data into database. I wrote a global validator that will validate and return a Boolean value whether the validation was successful .
Here is my code.
//VALIDATE
$isValid = true;
foreach($team as $key=>$val) {
if(!is_array($val)){
$isValid = $isValid && validate($val, $key);
}
}
for($it=0;$it<count($team['members']);$it++){
foreach($team['members'][$it] as $key=>$val) {
$isValid = $isValid && validate($val, $key);
}
}
if(!$isValid) { // EDITED: if(!isValid)
echo "validation error";
exit(1);
}
//END OF VALIDATE
The validate function is working properly but sometimes I end up getting $isValid = true or the other way, when I try with some test cases.
Hmm.. What am I doing wrong here ?
Please check, if this form does the trick:
if( false === $isValid) {
echo "validation error";
exit(1);
}
Note, that ( ! $isValid ) or (false == $isValid ) in some cases return results, which are at first look wrong. See for example the hint in the strpos() documentation.
In fact, the results are fine, since operations line ! or == try to cast operands in a 'useful' way.
That said, it's always better to user the === operator, since it checks values and types of operands. Please see operator overview.
if(!isValid) { falls back to if (!"isValid"), if there is no constant isValid. You probably meant if (!$isValid) {.
if(!isValid) {
isValid has no dolar, (you need to give variables in PHP some cash) so:
if(!$isValid) {
Source : http://bit.ly/1hxDmVR
Here is sample code for working with logical operators in PHP. Hope it will helpful:
<html>
<head>
<title>Logical</title>
</head>
<body>
<?php
$a=10;
$b=20;
if($a>$b)
{
echo " A is Greater";
}
elseif($a<$b)
{
echo " A is lesser";
}
else
{
echo "A and B are equal";
}
?>
<?php
$c=30;
$d=40;
//if(($a<$c)AND($b<$d))
if(($a<$c)&&($b<$d))
{
echo "A and B are larger";
}
if(isset($d))
$d=100;
echo $d;
unset($d);
?>
<?php
$var1=2;
switch($var1)
{
case 1:echo "var1 is 1";
break;
case 2:echo "var1 is 2";
break;
case 3:echo "var1 is 3";
break;
default:echo "var1 is unknown";
}
?>
</body>
</html>
I think the problem is that your $isValid variable can be changed many times in the loops and by the end of your code simply applies to the last value in your final loop.
You should set it to true initially and then only set it to false IF your validity check fails - not simply assign its value based on every single validity check.