PHP | Andrei's Blog

Ajax periodic refresh of page using jQuery

Categories: JavaScript, PHP
Posted on: 13th July 2009 by: Andrei

var refreshId = setInterval(function() {
     $('#some-content').load('/path/to/your.php');
}, 3000);

PHP software development kit for Windows Azure

0

Categories: News, PHP
Posted on: 14th May 2009 by: Andrei

You can download an alpha version on codeplex by following this link http://phpazure.codeplex.com/. Only for PHP >= 5.2.4.

Overview

Enables PHP developers to take advantage of the Microsoft Cloud Services Platform – Windows Azure.

Provides consistent programming model for Windows Azure Storage (Blobs, Tables & Queues)

Features

PHP classes for Windows Azure Blobs, Tables & Queues (for CRUD operations)

Helper Classes for HTTP transport, AuthN/AuthZ, REST & Error Management

Manageability, Instrumentation & Logging support

Easy way to validate and filter data in PHP5

2

Categories: PHP
Posted on: 13th May 2009 by: Andrei

Thanks to a new set of filtering functions introduced in PHP5, the task of validating and sanitising user input has gotten easier.

Here’s a complete list of filtering functions:

filter_has_var — Checks if variable of specified type exists
filter_id — Returns the filter ID belonging to a named filter
filter_input_array — Gets external variables and optionally filters them
filter_input — Gets a specific external variable by name and optionally filters it
filter_list — Returns a list of all supported filters
filter_var_array — Gets multiple variables and optionally filters them
filter_var — Filters a variable with a specified filter

The complete list of filters available:

ID	Name	Options	Flags	Description
`FILTER_VALIDATE_INT`	“int”	`min_range`, `max_range`	`FILTER_FLAG_ALLOW_OCTAL`, `FILTER_FLAG_ALLOW_HEX`	Validates value as integer, optionally from the specified range.
`FILTER_VALIDATE_BOOLEAN`	“boolean”			Returns `TRUE` for “1″, “true”, “on” and “yes”, `FALSE` for “0″, “false”, “off”, “no”, and “”, `NULL` otherwise.
`FILTER_VALIDATE_FLOAT`	“float”			Validates value as float.
`FILTER_VALIDATE_REGEXP`	“validate_regexp”	`regexp`		Validates value against `regexp`, a Perl-compatible regular expression.
`FILTER_VALIDATE_URL`	“validate_url”		`FILTER_FLAG_SCHEME_REQUIRED`, `FILTER_FLAG_HOST_REQUIRED`, `FILTER_FLAG_PATH_REQUIRED`, `FILTER_FLAG_QUERY_REQUIRED`	Validates value as URL, optionally with required components.
`FILTER_VALIDATE_EMAIL`	“validate_email”			Validates value as e-mail.
`FILTER_VALIDATE_IP`	“validate_ip”		`FILTER_FLAG_IPV4`, `FILTER_FLAG_IPV6`, `FILTER_FLAG_NO_PRIV_RANGE`, `FILTER_FLAG_NO_RES_RANGE`	Validates value as IP address, optionally only IPv4 or IPv6 or not from private or reserved ranges.
`FILTER_SANITIZE_STRING`	“string”		`FILTER_FLAG_NO_ENCODE_QUOTES`, `FILTER_FLAG_STRIP_LOW`, `FILTER_FLAG_STRIP_HIGH`, `FILTER_FLAG_ENCODE_LOW`, `FILTER_FLAG_ENCODE_HIGH`, `FILTER_FLAG_ENCODE_AMP`	Strip tags, optionally strip or encode special characters.
`FILTER_SANITIZE_STRIPPED`	“stripped”			Alias of “string” filter.
`FILTER_SANITIZE_ENCODED`	“encoded”		`FILTER_FLAG_STRIP_LOW`, `FILTER_FLAG_STRIP_HIGH`, `FILTER_FLAG_ENCODE_LOW`, `FILTER_FLAG_ENCODE_HIGH`	URL-encode string, optionally strip or encode special characters.
`FILTER_SANITIZE_SPECIAL_CHARS`	“special_chars”		`FILTER_FLAG_STRIP_LOW`, `FILTER_FLAG_STRIP_HIGH`, `FILTER_FLAG_ENCODE_HIGH`	HTML-escape `‘”<>&` and characters with ASCII value less than 32, optionally strip or encode other special characters.
`FILTER_UNSAFE_RAW`	“unsafe_raw”		`FILTER_FLAG_STRIP_LOW`, `FILTER_FLAG_STRIP_HIGH`, `FILTER_FLAG_ENCODE_LOW`, `FILTER_FLAG_ENCODE_HIGH`, `FILTER_FLAG_ENCODE_AMP`	Do nothing, optionally strip or encode special characters.
`FILTER_SANITIZE_EMAIL`	“email”			Remove all characters except letters, digits and !#$%&’*+-/=?^_`{\|}~@.[].
`FILTER_SANITIZE_URL`	“url”			Remove all characters except letters, digits and $-_.+!*’(),{}\|\\^~[]`<>#%”;/?:@&=.
`FILTER_SANITIZE_NUMBER_INT`	“number_int”			Remove all characters except digits and `+-`.
`FILTER_SANITIZE_NUMBER_FLOAT`	“number_float”		`FILTER_FLAG_ALLOW_FRACTION`, `FILTER_FLAG_ALLOW_THOUSAND`, `FILTER_FLAG_ALLOW_SCIENTIFIC`	Remove all characters except digits, `+-` and optionally `.,eE`.
`FILTER_SANITIZE_MAGIC_QUOTES`	“magic_quotes”			Apply addslashes().
`FILTER_CALLBACK`	“callback”		callback function or method	Call user-defined function to filter data.