liquidbass

Its an easy way to write short If-Statements in PHP, also known as the ternary operator.
Ternary because of the three operands: a condition, a result for true, and a result for false.

But I always need to look up this snippet, so now I write it down for reference.

$notice = ($price < 20) ? 'cheap' : 'expensive';

This code is equal to this:

if($price < 20) {
    $notice = "cheap";
}
else {
    $notice = "expensive";
}

If the variable “price” is less than 20, the variable “notice” is set to “cheap”.
Otherwise (price is equal, or greater than 20) the notice is set to “expensive”.

A regular expression that validates a given domain without its top level domain. I didnt need to validate the tld because this comes from a selectbox, so its predefined and always valid. The http protocol or the second level domain www. are both optional, it can be written or not.

$regex = "/^(?:(http:\/\/)?)(?:(w{3}\.)?)([A-Z0-9\-".utf8_encode("äÄöÖüÜ")."]{3,})$/i";
if(!preg_match($regex,$domainname)) {
	return false;
}

So the string can look like this:
http://www.liquidbass or www.liquidbass or http://liquidbass

detailed Description:

/^

This is the beginning of the regex. The ^ is used for searching all matches from the beginning of the given string.

(?:(http:\/\/)?)(?:(w{3}\.)?)

Here we have the optional protocol and the optional second level domain www. …

([A-Z0-9\-".utf8_encode("äÄöÖüÜ")."]{3,})

This part of the regex allows all characters from a to z, hyphens and all numerics from 0 to 9.
Additionally german special chars are allowed too.
All these possible characters must match a stringlength of minimum 3.

$/i

the dollar stands for the strings end, so it would be searched for matches from beginning to the end.
the /i stands for case sensivity - the given string can be in capital letters or in lowercase.

This is an easy way to truncate strings without cutting words after n characters.

bad one:
Lorem ipsum dolor sit amet, hy…

good one:
Lorem ipsum dolor sit amet, hymenaeos …

$string = "Lorem ipsum dolor sit amet, pellentesque wisi ut congue eget quam.";
$strLength = 30;
echo substr ( $string, 0, strrpos ( $string, ' ', - ( strlen ( $string ) - $strLength ) ) );

Sure, this is just a little thing, but i liked to show the apaches long lined access.log in a better readable way.

Just opening the access.log file with PHP and parsing line per line….

$file = "/path/to/access_log";
@$fp = fopen($file,"r");

if (!$fp) {
    echo $file ."not existent!\n";
}
else {
    while (!feof($fp)) {
        $zeile = fgets($fp, 230);
        $buffer  = explode(" ", $zeile);

        $datum = substr($buffer[3], 1);        

        echo "IP-Address: ".$buffer[0]."\n";
        echo "Date: ".$datum."\n";
        echo "DeliveredPage: ".$buffer[6]."\n";
        echo "Backlink: ".$buffer[10]."\n";
        echo "User-Agent: ".$buffer[11]."\n";
        echo "
\n";

    }
}

@fclose($fp);