Using http_build_query now that I know about it! Handy!
PHP http_build_query
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Category Archives: Programming
jQuery Validation Plugin
Using the jQuery Validation Plugin to validate my web forms… handy!
Preserving whitespace in jQuery .val()
Found this article today which had a method for preserving white space in jQuery’s .val() function.
$.valHooks.textarea = {
get: function( elem ) {
return elem.value.replace( /\r?\n/g, "\r\n" );
}};
Escaping SQL values in PHP without using mysql_real_escape_string
Found this article which has a handy ‘escape’ function:
// replace any non-ascii character with its hex code.
function escape($value) {
$return = '';
for($i = 0; $i < strlen($value); ++$i) {
$char = $value[$i];
$ord = ord($char);
if($char !== "'" && $char !== "\"" && $char !== '\\' && $ord >= 32 && $ord <= 126)
$return .= $char;
else
$return .= '\\x' . dechex($ord);
}
return $return;
}
Single Sign On: integrating Postfix/Kerberos/LDAP
Some reading to do concerning integrating Postfix/Kerberos with LDAP:
http://www.postfix.org/LDAP_README.html
http://www.boobah.info/howto/postfix-ldap.html
http://web.mit.edu/kerberos/krb5-devel/doc/admin/conf_ldap.html
Execute Multiple MySQL Queries from One String in PHP
Found this article today, Execute Multiple MySQL Queries from One String in PHP. It’s a work around for processing MySQL batch queries separated by semicolons.
Using grep (not sed) to grab IP addresses from Apache web logs
Today I ran the following command to see how many people accessed the ProgClub wiki over the previous 5 hours:
jj5@charity:/var/log/apache2$ grep "GET /wiki/" access.log |
grep "13/Jul/2013:0" | grep -Eo '^([0-9]{1,3}\.){3}[0-9]{1,3}' | sort | uniq | wc
Cloning a JavaScript object with jQuery
Today I heard from John Resig on StackOverflow about how to clone objects using jQuery:
// Shallow copy
var newObject = jQuery.extend({}, oldObject);
// Deep copy
var newObject = jQuery.extend(true, {}, oldObject);
HTTP cache control headers
I had to do two things today. One was to make sure that in production all of my resources were cached. The other was to make sure that in development none of my resources were cached. I ended up with these two functions, which seem to be doing the trick to disable/enable caching:
function set_nocache() {
header("Expires: Tue, 03 Jul 2001 06:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
}
function set_cache() {
header('Expires: ' . gmdate( 'D, d M Y H:i:s', time()+31536000 ) . ' GMT');
header('Cache-Control: max-age=31536000');
}
Reference: Completely disable any browser caching.
bzr_hookless_email configuration bug
I ran into this bug using bzr_hookless_email, fortunately someone had published a patch which seems to have fixed the issue:
=== modified file 'bzr_hookless_email.py'
--- bzr_hookless_email.py 2012-03-22 15:15:15 +0000
+++ bzr_hookless_email.py 2012-04-25 06:05:55 +0000
@@ -159,7 +159,7 @@
self._config = self._branch.get_config()
def update(self):
- smtp = SMTPConnection(self._config)
+ smtp = SMTPConnection(self._branch.get_config_stack())
smtp_from = None
for revision in self._revisions_to_send():
msg = self._compose_email(revision)