PHP file_get_contents Function - Reads entire file into a string

string file_get_contents ( string $filename [, bool $use_include_path = false [, resource $context [, int $offset = -1 [, int $maxlen ]]]] )

Reads entire file into a string

This function is similar to file(), except that file_get_contents() returns the file in a string, starting at the specified offset up to maxlen bytes. On failure, file_get_contents() will return FALSE.


<?php
$homepage = file_get_contents('http://www.example.com/');
echo $homepage;?>

5.1.0 Added the offset and maxlen parameters. 5.0.0 Added context support.

PHP mail attachment - sending an attachment with PHP

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PHP utf8_encode Function - Encodes an ISO-8859-1 string to UTF-8

string utf8_encode ( string $data )

Encodes an ISO-8859-1 string to UTF-8

This function encodes the string data to UTF-8, and returns the encoded version. UTF-8 is a standard mechanism used by Unicode for encoding wide character values into a byte stream. UTF-8 is transparent to plain ASCII characters, is self-synchronized (mea


Walk through nested arrays/objects and utf8 encode all strings.



<?php// Usageclass Foo {

    public $somevar = 'whoop whoop';

}$structure = array(
    'object' => (object) array(
        'entry' => 'hello wörld',
        'another_array' => array(
            'string',
            1234,
            'another string'
        )
    ),
    'string' => 'foo',
    'foo_object' => new Foo);
utf8_encode_deep($structure);
// $structure is now utf8 encodedprint_r($structure);
// The functionfunction utf8_encode_deep(&$input) {
    if (is_string($input)) {
        $input = utf8_encode($input);
    } else if (is_array($input)) {
        foreach ($input as &$value) {
            utf8_encode_deep($value);
        }
        unset($value);
    } else if (is_object($input)) {
        $vars = array_keys(get_object_vars($input));
        foreach ($vars as $var) {
           utf8_encode_deep($input->$var);
        }
    }
}?>

1 7 0bbbbbbb 2 11 110bbbbb 10bbbbbb 3 16 1110bbbb 10bbbbbb 10bbbbbb 4 21 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb

Corrigindo erros de acentuação no PHP

com_create_guid Generate a globally unique identifier

string com_create_guid ( void )

Generate a globally unique identifier (GUID)

Generates a Globally Unique Identifier (GUID).


The phunction PHP framework (http://sourceforge.net/projects/phunction/) uses the following function to generate valid version 4 UUIDs:



<?phpfunction GUID()
{
    if (function_exists('com_create_guid') === true)
    {
        return trim(com_create_guid(), '{}');
    }
    return sprintf('%04X%04X-%04X-%04X-%04X-%04X%04X%04X', mt_rand(0, 65535), mt_rand(0, 65535), mt_rand(0, 65535), mt_rand(16384, 20479), mt_rand(32768, 49151), mt_rand(0, 65535), mt_rand(0, 65535), mt_rand(0, 65535));

}?>

The output generated by the sprintf() and mt_rand() calls is identical to com_create_guid() results.

spl_autoload What is spl_autoload function in php

void spl_autoload ( string $class_name [, string $file_extensions = spl_autoload_extensions() ] )

Default implementation for __autoload()

This function is intended to be used as a default implementation for __autoload(). If nothing else is specified and spl_autoload_register() is called without any parameters then this function will be used for any later call to __autoload().

spl_autoload_register() allows you to register multiple functions (or static methods from your own Autoload class) that PHP will put into a stack/queue and call sequentially when a "new Class" is declared.

Following is the example

 
<?php
spl_autoload_register('myAutoloader');
function loadAutoload($className){
    $path = '/path/to/class';
    include $path.$className.'.php';
}
$obj = new Zend_Log();
?>

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parse_ini_string - Parse a configuration string

array parse_ini_string ( string $ini [, bool $process_sections = false [, int $scanner_mode = INI_SCANNER_NORMAL ]] )

Parse a configuration string

parse_ini_string returns the settings in string ini in an associative array.


Function parse_ini_file doesn't parse a remote ini file if allow_url_include is off. But if allow_url_fopen is on, you can use parse_ini_string to parse a remote ini file after read its contents.

/**
* Assume that; allow_url_include=0 and allow_url_fopen=1
* (default values in php.ini)
*/

$iniUrl = 'http://website.com/remote/config.ini';
/**
* Warning: parse_ini_file(): http:// wrapper is disabled in the server configuration by allow_url_include=0
*/
$config = parse_ini_file($iniUrl);

/**
* works fine
*/
$config = parse_ini_string(file_get_contents($iniUrl));

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stream_socket_client - Open Internet or Unix domain socket connection

resource stream_socket_client ( string $remote_socket [, int &$errno [, string &$errstr [, float $timeout = ini_get("default_socket_timeout") [, int $flags = STREAM_CLIENT_CONNECT [, resource $context ]]]]] )

Open Internet or Unix domain socket connection

Initiates a stream or datagram connection to the destination specified by remote_socket. The type of socket created is determined by the transport specified using standard URL formatting: transport://target. For Internet Domain sockets (AF_INET) such as T


<?php
$fp = stream_socket_client("tcp://www.example.com:80", $errno, $errstr, 30);
if (!$fp) {
    echo "$errstr ($errno)<br />\n";
} else {
    fwrite($fp, "GET / HTTP/1.0\r\nHost: www.example.com\r\nAccept: */*\r\n\r\n");
    while (!feof($fp)) {
        echo fgets($fp, 1024);
    }
    fclose($fp);
}?>

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imagecopyresampled-Copy and resize part of an image with resampling

bool imagecopyresampled ( resource $dst_image , resource $src_image , int $dst_x , int $dst_y , int $src_x , int $src_y , int $dst_w , int $dst_h , int $src_w , int $src_h )

Copy and resize part of an image with resampling

imagecopyresampled() copies a rectangular portion of one image to another image, smoothly interpolating pixel values so that, in particular, reducing the size of an image still retains a great deal of clarity.


<?php// The file
$filename = 'test.jpg';
$percent = 0.5;// Content type
header('Content-Type: image/jpeg');// Get new dimensions
list($width, $height) = getimagesize($filename);$new_width = $width * $percent;$new_height = $height * $percent;// Resample
$image_p = imagecreatetruecolor($new_width, $new_height);
$image = imagecreatefromjpeg($filename);
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);// Output
imagejpeg($image_p, null, 100);?>

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56. spl_autoload_register.
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58. mcrypt_decrypt.
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SPL autoload extensions in PHP

string spl_autoload_extensions ([ string $file_extensions ] )

Register and return default file extensions for spl_autoload

This function can modify and check the file extensions that the built in __autoload() fallback function spl_autoload() will be using.

<?php
    public function __construct() 
    {
        spl_autoload_register(array($this,'library'));
    }

    public function library($class)
    {
        if (is_string($class) && null === $class) {
            set_include_path(get_include_path().PATH_SEPARATOR.'app/lib/');
            spl_autoload_extension('.php');
            spl_autoload($class);
        }
        return false;
    }
?>

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47. fsockopen Open Internet or Unix domain socket connection- PHP.

Parse a binary IPTC block into single tags

array iptcparse ( string $iptcblock )

Parse a binary IPTC block into single tags.

Parses an » IPTC block into its single tags.


You might have noticed that several metadata fields in Photoshop are not available via IPTC.



Someone have written a library "PHP JPEG Metadata Toolkit" which fixes this problem as it allows reading, writing and interpreting of virtually any type of metadata, including these missing fields.


Try it out:
http://www.ozhiker.com/electronics/pjmt/index.html


Function Return Value
It return an array using the tagmarker as an index and the value as the value and  returns FALSE on error or if no IPTC data was found.

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30. openssl decrypt - Decrypts data.
31. Domain Name Server.
32. iterator_apply - Call a function for every element in an iterator - PHP.
33. openssl private encrypt.
34. openssl_pkcs12_read.
35. mb_check_encoding.
36. imagegrabwindow.
37. imagealphablending.
38. Gets options from the command line argument list.
39. spl autoload extensions in PHP.
40. Parse a binary IPTC block into single tags.
41. Embeds binary IPTC data into a JPEG image.
42. session_set_save_handler.
43. mcrypt_encrypt.
44. imagegrabscreen.
45. imagecreatefromjpeg.
46. stat Gives information about a file - PHP.
47. fsockopen Open Internet or Unix domain socket connection- PHP.
48. intval - Get Integer value from string in PHP.
49. register_shutdown_function.
50. setcookie - Store Cookie in Browser with PHP.
51. header_remove - Remove the Header.
52. proc_open.
53. ucwords - Uppercase the first character of each word in a string.
54. getimagesize -Get the size of an image - PHP.
55. phpinfo - Outputs information about PHP's configuration.
56. spl_autoload_register.
57. json_encode - Returns the JSON representation of a value.
58. mcrypt_decrypt.
59. PHP Magic Methods with Examples.