Usefull PHP Command line Switches

$f = empty($_GET['f']) ? "" : $_GET['f'];

if( file_exists($f ) ){
    $f = realpath($f);
    $cmd = " php -s $f ";
    #echo $cmd;
    exec($cmd, $op);
    echo implode("\r\n", $op) ;

}else{
    echo "Requested file not found : $f ";
}

Usefull JavaScript Function's

String.prototype.isYMD = function (spliter){
    //validate date y-m-d format
    spliter = spliter || '-'; //defult value     
    var parts = (this + spliter + spliter  ).split(spliter);
    parts[0] = parseInt(parts[0], 10); //radix 10 required to handle 0 padded value
    parts[1] = parseInt(parts[1], 10) -1; //month starts from 0
    parts[2] = parseInt(parts[2], 10);
    var dt = new Date( parts[0], parts[1], parts[2]);
    var ret = (parts[0] == dt.getFullYear()) && (parts[1] == dt.getMonth()) && (parts[2] == dt.getDate() );
    dt = null; parts = null
    return ret;
    //return  parts.join('-') + ' : ' +  dt.getFullYear() + "-" + dt.getMonth() + '-' + dt.getDay();
}

function compareYMD(d1, d2, spliter){
    //compare two dateYMD
    //return 0 if both equal, 1 if d1 heigher, -1 if d2 is higher     
    spliter = spliter || '-'; //defult value 
    d1 = (d1 + spliter + spliter).split(spliter);
    d2 = (d2 + spliter + spliter).split(spliter);
    d1[0] = parseInt(d1[0], 10);
    d1[1] = parseInt(d1[1], 10);
    d1[2] = parseInt(d1[2], 10);
    d2[0] = parseInt(d2[0], 10);
    d2[1] = parseInt(d2[1], 10);
    d2[2] = parseInt(d2[2], 10);
    ret = 0; 
    if( d1[0] > d2[0] ){
        ret = 1
    }else if( d1[0] <>0] ){
        ret = -1;
    }else if( d1[1] > d2[1] ){
        ret = 1
    }else if( d1[1] <>1] ){
        ret = -1;
    }else if( d1[2] > d2[2] ){
        ret = 1
    }else if( d1[2] <>2] ){
        ret = -1;
    }
    return ret;
} 

Embbeding Image, Files within HTML like email

<?php

/**
* Embeding Image, Files within HTML like email.
*
* We Embed file within html code , so it is available within page itself not seperate file.
* Example 1: Image embeding
* Example 2: CSV file embeding
* Example 3: Download String as CSV
*/

error_reporting(E_ALL); 

$def_img = 'http://www.google.co.in/images/nav_logo3.png';
$file    = empty($_GET['f']) ? $def_img : $_GET['f'];

echo '<p>Example 1:</p>';
echo '<img src="'.embedImg($file).'" border="1"  /><br> ';

function embedImg($path){
    //$path = image path 
    //usage echo '<img src="'.embedImg($_GET['f']).'" border="1" width="50" height="50" /> ';
 $pi = @pathinfo($path);

 $ext = empty($pi['extension']) ? 'png' : $pi['extension'];

 return "data:image/{$ext};base64,".@base64_encode( @file_get_contents($path) ); 
}



echo '<p>Example 2:</p>';

echo '<a href="'.downloadFile('csv.csv').'">Download CSV</a><br>';

function downloadFile($path){

    #$path is path of any file 
    #usage echo '<a href="'.downloadFile('csv.csv').'">Download CSV</a>';
    #echo '<a href="'.downloadFile('format.php').'">Download CSV</a>';

 $pi = @pathinfo($path);
 $ext = empty($pi['extension']) ? 'txt' : $pi['extension'];

 return "data:application/{$ext};base64,".@base64_encode( @file_get_contents($path) ); 
}



echo '<p>Example 3:</p>';

$data_str = "col1,col2,col3\n1,2,3\na,b,c";
echo '<a href="' . downloadStrAsFile('a.csv',$data_str) . '"> Using string </a><br>';

function downloadStrAsFile($name, $strdata, $ext='csv'){
    #echo '<a href="' . downloadAsFile('a.csv','a,b,c,d,e,f') . '"> Using string </a>';

 $pi = @pathinfo($path);
 return "data:application/{$ext};base64,".@base64_encode($strdata);

}

?> 

Download Partial HTTP data using PHP

/**
 * Download Partial/Partof Page 
 *
 * HTTP HEADERS links  http://www.cs.tut.fi/~jkorpela/http.html 
 * HTTP RFC            http://www.w3.org/Protocols/rfc2616/rfc2616.html
 * Any Suggestion Welcome :)
*/

error_reporting(E_ALL);

$host = 'www.w3.org'; 
$path = '/2005/10/Process-20051014/activities.html'; 

$service_port = getservbyname('www', 'tcp');
$address      = gethostbyname($host);
$socket       = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);

if ( $socket === false ) {
    die("socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n");
}

$result = socket_connect($socket, $address, $service_port);

if ( $result === false ) {
    die("socket_connect() failed.\nReason: ($result) " . socket_strerror(socket_last_error($socket)) . "\n");
}

$in = ''; 
$in .= "GET {$path} HTTP/1.1\r\n";
$in .= "Host: {$host}\r\n";
$in .= "Range: bytes=0-200\r\n"; //0 to 200 OR first 200
#$in .= "Range: bytes=200-400\r\n"; //200 to 400  
#$in .= "Range: bytes=200-\r\n"; //200 to onwards
#$in .= "Range: bytes=-200\r\n"; //last 200
$in .= "Connection: Close\r\n\r\n";

socket_write( $socket, $in, strlen( $in ) );

while ( $out = socket_read( $socket, 2048 ) ) {
    
    $parts =  explode("\n\n", str_replace("\r", '', $out));

    $responsebody = htmlentities( empty($parts[1]) ? "" : $parts[1] );
    
    echo  "<fieldset><legend>Request Header</legend>".nl2br($in)."</fieldset>";
    echo  "<fieldset><legend>Response Header</legend>".nl2br($parts[0])."</fieldset>";
    echo  "<fieldset><legend>Response Body</legend><textarea cols='80' rows='20'>{$responsebody}</textarea></fieldset>";
}


#echo "Closing socket...";
socket_close($socket);

?&>