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How to validate an email address in PHP
...t way to check whether an email address is well-formed is to use the filter_var() function:
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
// invalid emailaddress
}
Additionally you can check whether the domain defines an MX record:
if (!checkdnsrr($domain, 'MX')) {
// domain is not v...
jQuery: checking if the value of a field is null (empty)
... "NULL". You want to check if it's an empty string instead:
if ($('#person_data[document_type]').val() != ''){}
or:
if ($('#person_data[document_type]').val().length != 0){}
If you want to check if the element exist at all, you should do that before calling val:
var $d = $('#person_data[docum...
Replace tabs with spaces in vim
...d like to convert tab to spaces in gVim. I added the following line to my _vimrc :
11 Answers
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What is the correct way to start a mongod service on linux / OS X?
...lled mongo via homebrew and it included /usr/local/Cellar/mongodb/2.4.5-x86_64/homebrew.mxcl.mongodb.plist (and was properly configured for my installation). Just copied homebrew.mxcl.mongodb.plist into LaunchAgents and followed the rest of these instructions (substituting homebrew.mxcl.mongodb for ...
Regular expression \p{L} and \p{N}
...not be using alternation when a character class would suffice:
[\p{L}\p{N}_.-]*
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PHP validation/regex for URL
...lieve I've run into issues, but I'm sure it's not exhaustive:
$text = preg_replace(
'#((https?|ftp)://(\S*?\.\S*?))([\s)\[\]{},;"\':<]|\.\s|$)#i',
"'<a href=\"$1\" target=\"_blank\">$3</a>$4'",
$text
);
Most of the random junk at the end is to deal with situations like http:/...
What's the difference setting Embed Interop Types true and false in Visual Studio?
...oblem was merging such assemblies with ILMerge.
– Ant_222
Aug 4 at 13:37
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How to send an email with Python?
...(reproduced from the Python documentation). Notice that if you follow this approach, the "simple" task is indeed simple, and the more complex tasks (like attaching binary objects or sending plain/HTML multipart messages) are accomplished very rapidly.
# Import smtplib for the actual sending functio...
How does the bitwise complement operator (~ tilde) work?
... and Two's Complement. Read about them here. en.wikipedia.org/wiki/Ones%27_complement en.wikipedia.org/wiki/Two%27s_complement
– Sai
Dec 21 '14 at 3:40
1
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How can I create an array with key value pairs?
...bracket syntax:
if (!empty($row["title"])) {
$catList[$row["datasource_id"]] = $row["title"];
}
$row["datasource_id"] is the key for where the value of $row["title"] is stored in.
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