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Posts posted by megglz

    Using arrays and sha1

    in PHP Coding Help

    Posted

    I have the following array which builds a concatenation of the items in tree-like form.

     

     

    $arrayT = array();
$arrayT[0] = "a";
$arrayT[1] = "b";
$arrayT[2] = "c";
$arrayT[3] = "d";
$arrayT[4] = "e";
$arrayT[5] = "f";
$arrayT[6] = "g";
$arrayT[7] = "h";

$arrayT = buildTree($arrayT);

print_r($arrayT);

function buildTree($array) {
    $arrayTree = $array;
    $start = 0;
    $end = count($arrayTree);
$i = 0;
    while ($start != $end - 1) {
        if ($i % 2 == 1) {
            $arrayTree[count($arrayTree) - 1].=$arrayTree[$start + $i];
        }
        else
            $arrayTree[] .= $arrayTree[$start + $i];
        $i++;
        if (($start + $i) == $end) {
            $i = 0;
            $start = $end;
            $end = count($arrayTree);
        }
    }
    return $arrayTree;
}

     

    Example output is

     

    Array ( [0] => a [1] => b [2] => c [3] => d [4] => e [5] => f [6] => g [7] => h [8] => ab [9] => cd [10] => ef [11] => gh [12] => abcd [13] => efgh [14] => abcdefgh )

     

     

    I would like the values to be hashed using sha1. e.g value at [8] ab would be the hash of [0]a and [1] b, value [12]abcd would be the hash of the values at [8]ab and [9]cd. I modified it myself in the next code snippet but I still don't feel it's doing what it's meant

     

    function buildTree($array) {
    $arrayTree = $array;
    $start = 0;
    $end = count($arrayTree);
$i = 0;
    while ($start != $end - 1) {
        if ($i % 2 == 1) {
            $arrayTree[count($arrayTree) - 1].=$arrayTree[$start + $i];
		sha1($arrayTree[count($arrayTree)-1].=$arrayTree[$start + $i]);
        }
        else
            $arrayTree[] .= sha1($arrayTree[$start + $i]);
        $i++;
        if (($start + $i) == $end) {
            $i = 0;
            $start = $end;
            $end = count($arrayTree);
        }
    }
    return $arrayTree;
}

$val1 = sha1($arrayT[0]);

$val2 = sha1($arrayT[1]);

$val3 = sha1($val1.$val2);

$val4 = sha1("ab");
echo "VAL1 ".$val1;
echo "<br/>";
echo "VAL2 ".$val2;
echo "<br/>";
echo "VAL3 ".$val3;
echo "<br/>";
echo "VAL4 ".$val4;

     

     

    Anyone any ideas? Thankyou.

    need help with array searching

    in PHP Coding Help

    Posted

    I am including my test.php for other to run.

     

    I have a very large array of concatenated hash values. I have another array that contains the first 8 hash values of the other array. I have a function to locate them in the larger array. Depending on their index value I then choose the index of the value before or behind them for adding to something else later. This 'computeWalk' method works for small arrays but for larger arrays I notice duplicates or errors with larger ones.

     

    For example.

     

    The first array returns:

    Array ( [0] => 1 [1] => 18 [2] => 18 [3] => 35 [4] => 33 [5] => 33 )

    The values for i's to get each of these values are

    I = 0

    I = 19

    I = 29

    I = 34

    I = 37

    I = 39

     

    Walking through the method by hand,

    0%2 = 0

    So the first element of the array will be 1. CORRECT.

    19%2 = 1

    So the next element will be 18. CORRECT.

    29%2 = 1

    The next element should be 28. It returns 18.

    34%2 = 0

    The next element will be 35. Correct.

    37%2 = 1

    The next element should be 36. It returns 33.

    39%2 = 1

    The next element should be 38. It returns 33.

     

    I am not sure why it's doing the above.

    I also tried array_search and it computed it the same way.

     

    Would appreciate any help.

     

    <?php
$arrayTree = array();
$arrayTree[0] = "9d027b1c4068d81287c9170f4b291387f8327eb7";
$arrayTree[1] = "4c8fabdc24c2d8205db916a22e9459195833a272";
$arrayTree[2] = "209526afab9e85b54e1832a820a7f578b7760af0";
$arrayTree[3] = "59d6926525e941edca99493b2b2a4f0a6efcb757";
$arrayTree[4] = "c8b49b8e414a09ddb693c580ecdfa6793c845f9d";
$arrayTree[5] = "b207bea6c4833d90f6ee4e694ffb148c046b0eb3";
$arrayTree[6] = "6d72a84b3aefbd3766078ed17a19aebb0c4ae026";
$arrayTree[7] = "b00207b8944520ea3817334615a7cdbf8214232a";
$arrayTree[8] = "d934f53af9bee26f35df7206dc06211778996986";
$arrayTree[9] = "de2ecd02fd017b0311dbfe589b5faa7954ced196";
$arrayTree[10] = "7d9752d09d3097fac748b6767472f9b69a65ed2e";
$arrayTree[11] = "62630fe109b42747b4c53065ec96aabf7b14d7b6";
$arrayTree[12] = "d727b5b8ffaeadbac75123801c270fd65f19251c";
$arrayTree[13] = "e39a9141fd9ce9426e88f30b6f245fdbb8f887a5";
$arrayTree[14] = "85fe053baa7ccf469c440a7dd98381228a0c52c3";
$arrayTree[15] = "6199634d410d0c91fd6ff99af9eabd5a1c7911de";
$arrayTree[16] = "af594de7d539519445013b7c87f02edbf3c44653";
$arrayTree[17] = "b6eb6dab75d092f4be345925ccbf87ff1e17fc31";
$arrayTree[18] = "2163ca6b0a608242712af82a81599f1f95c26dee";
$arrayTree[19] = "9d027b1c4068d81287c9170f4b291387f8327eb74c8fabdc24c2d8205db916a22e9459195833a272";
$arrayTree[20] = "209526afab9e85b54e1832a820a7f578b7760af059d6926525e941edca99493b2b2a4f0a6efcb757";
$arrayTree[21] = "c8b49b8e414a09ddb693c580ecdfa6793c845f9db207bea6c4833d90f6ee4e694ffb148c046b0eb3";
$arrayTree[22] = "6d72a84b3aefbd3766078ed17a19aebb0c4ae026b00207b8944520ea3817334615a7cdbf8214232a";
$arrayTree[23] = "d934f53af9bee26f35df7206dc06211778996986de2ecd02fd017b0311dbfe589b5faa7954ced196";
$arrayTree[24] = "7d9752d09d3097fac748b6767472f9b69a65ed2e62630fe109b42747b4c53065ec96aabf7b14d7b6";
$arrayTree[25] = "d727b5b8ffaeadbac75123801c270fd65f19251ce39a9141fd9ce9426e88f30b6f245fdbb8f887a5";
$arrayTree[26] = "85fe053baa7ccf469c440a7dd98381228a0c52c36199634d410d0c91fd6ff99af9eabd5a1c7911de";
$arrayTree[27] = "af594de7d539519445013b7c87f02edbf3c44653b6eb6dab75d092f4be345925ccbf87ff1e17fc31";
$arrayTree[28] = "2163ca6b0a608242712af82a81599f1f95c26dee";
$arrayTree[29] = "9d027b1c4068d81287c9170f4b291387f8327eb74c8fabdc24c2d8205db916a22e9459195833a272209526afab9e85b54e1832a820a7f578b7760af059d6926525e941edca99493b2b2a4f0a6efcb757";
$arrayTree[30] = "c8b49b8e414a09ddb693c580ecdfa6793c845f9db207bea6c4833d90f6ee4e694ffb148c046b0eb36d72a84b3aefbd3766078ed17a19aebb0c4ae026b00207b8944520ea3817334615a7cdbf8214232a";
$arrayTree[31] = "d934f53af9bee26f35df7206dc06211778996986de2ecd02fd017b0311dbfe589b5faa7954ced1967d9752d09d3097fac748b6767472f9b69a65ed2e62630fe109b42747b4c53065ec96aabf7b14d7b6";
$arrayTree[32] = "d727b5b8ffaeadbac75123801c270fd65f19251ce39a9141fd9ce9426e88f30b6f245fdbb8f887a585fe053baa7ccf469c440a7dd98381228a0c52c36199634d410d0c91fd6ff99af9eabd5a1c7911de";
$arrayTree[33] = "af594de7d539519445013b7c87f02edbf3c44653b6eb6dab75d092f4be345925ccbf87ff1e17fc312163ca6b0a608242712af82a81599f1f95c26dee";
$arrayTree[34] = "9d027b1c4068d81287c9170f4b291387f8327eb74c8fabdc24c2d8205db916a22e9459195833a272209526afab9e85b54e1832a820a7f578b7760af059d6926525e941edca99493b2b2a4f0a6efcb757c8b49b8e414a09ddb693c580ecdfa6793c845f9db207bea6c4833d90f6ee4e694ffb148c046b0eb36d72a84b3aefbd3766078ed17a19aebb0c4ae026b00207b8944520ea3817334615a7cdbf8214232a";
$arrayTree[35] = "d934f53af9bee26f35df7206dc06211778996986de2ecd02fd017b0311dbfe589b5faa7954ced1967d9752d09d3097fac748b6767472f9b69a65ed2e62630fe109b42747b4c53065ec96aabf7b14d7b6d727b5b8ffaeadbac75123801c270fd65f19251ce39a9141fd9ce9426e88f30b6f245fdbb8f887a585fe053baa7ccf469c440a7dd98381228a0c52c36199634d410d0c91fd6ff99af9eabd5a1c7911de";
$arrayTree[36] = "af594de7d539519445013b7c87f02edbf3c44653b6eb6dab75d092f4be345925ccbf87ff1e17fc312163ca6b0a608242712af82a81599f1f95c26dee";
$arrayTree[37] = "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";
$arrayTree[38] = "af594de7d539519445013b7c87f02edbf3c44653b6eb6dab75d092f4be345925ccbf87ff1e17fc312163ca6b0a608242712af82a81599f1f95c26dee";
$arrayTree[39] = "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";
$arrayTree[40] = "54u58rfhfheyrr4gfdtfvgw36tr36";
$arrayTree[41] = "54u58rfhfheyrr4gfdtfvgw36tr369d027b1c4068d81287c9170f4b291387f8327eb74c8fabdc24c2d8205db916a22e9459195833a272209526afab9e85b54e1832a820a7f578b7760af059d6926525e941edca99493b2b2a4f0a6efcb757c8b49b8e414a09ddb693c580ecdfa6793c845f9db207bea6c4833d90f6ee4e694ffb148c046b0eb36d72a84b3aefbd3766078ed17a19aebb0c4ae026b00207b8944520ea3817334615a7cdbf8214232ad934f53af9bee26f35df7206dc06211778996986de2ecd02fd017b0311dbfe589b5faa7954ced1967d9752d09d3097fac748b6767472f9b69a65ed2e62630fe109b42747b4c53065ec96aabf7b14d7b6d727b5b8ffaeadbac75123801c270fd65f19251ce39a9141fd9ce9426e88f30b6f245fdbb8f887a585fe053baa7ccf469c440a7dd98381228a0c52c36199634d410d0c91fd6ff99af9eabd5a1c7911deaf594de7d539519445013b7c87f02edbf3c44653b6eb6dab75d092f4be345925ccbf87ff1e17fc312163ca6b0a608242712af82a81599f1f95c26dee";


$arrayDocs = array();
$arrayDocs[0] = "9d027b1c4068d81287c9170f4b291387f8327eb7";
$arrayDocs[1] = "4c8fabdc24c2d8205db916a22e9459195833a272";
$arrayDocs[2] = "209526afab9e85b54e1832a820a7f578b7760af0";
$arrayDocs[3] = "59d6926525e941edca99493b2b2a4f0a6efcb757";
$arrayDocs[4] = "c8b49b8e414a09ddb693c580ecdfa6793c845f9d";
$arrayDocs[5] = "b207bea6c4833d90f6ee4e694ffb148c046b0eb3";
$arrayDocs[6] = "6d72a84b3aefbd3766078ed17a19aebb0c4ae026";
$arrayDocs[7] = "b00207b8944520ea3817334615a7cdbf8214232a";
$arrayDocs[8] = "d934f53af9bee26f35df7206dc06211778996986";
$arrayDocs[9] = "de2ecd02fd017b0311dbfe589b5faa7954ced196";
$arrayDocs[10] = "7d9752d09d3097fac748b6767472f9b69a65ed2e";
$arrayDocs[11] = "62630fe109b42747b4c53065ec96aabf7b14d7b6";
$arrayDocs[12] = "d727b5b8ffaeadbac75123801c270fd65f19251c";
$arrayDocs[13] = "e39a9141fd9ce9426e88f30b6f245fdbb8f887a5";
$arrayDocs[14] = "85fe053baa7ccf469c440a7dd98381228a0c52c3";
$arrayDocs[15] = "6199634d410d0c91fd6ff99af9eabd5a1c7911de";
$arrayDocs[16] = "af594de7d539519445013b7c87f02edbf3c44653";
$arrayDocs[17] = "b6eb6dab75d092f4be345925ccbf87ff1e17fc31";
$arrayDocs[18] = "2163ca6b0a608242712af82a81599f1f95c26dee";


foreach($arrayDocs as $doc) {
$bitIndex = computeWalk($arrayTree, $doc);
echo "<br/>";
        print_r($bitIndex);
	echo "<br/>";
}

function computeWalk($array, $needle) {
    $result = array();

    for ($i = 0; $i < count($array) - 1; $i++) {
        if (false !== strpos($array[$i], $needle)) {

	 echo " I = ".$i;
            if ($i % 2 == 0) {
                $result[] = getItemIndex($array[$i + 1], $array);
            } else {
                $result[] = getItemIndex($array[$i - 1], $array);
            }
        }
    }
    return $result;
}


function getItemIndex($item, $array) {
$myPosition=-1;
for ($i = 0; $i<count($array)-1; $i++) {
if($array[$i]==$item) {
$myPosition = $i;
break;
}
}
return $myPosition;
}
?>

    Using TCPDF and FPDI

    in Other Libraries

    Posted

    I am using TCPDF & FPDI together to create and merge PDF's. I create  a PDF with a link embedded in html and then merge it with another PDF. After merging, the link is only clickable if I pass in the link as

     

    // Set some content to print

        $html = <<<EOD

    <A HREF="http://www.helloworld.com">http://www.helloworld.com</A>

    EOD;

    $pdf->writeHTML($html, true, 0, true, 0);

     

    It is no longer clickable if I pass in the link as

     

        $html = <<<EOD

    <A HREF="http://www.helloworld.com">Visit Link</A>

    EOD;

    $pdf->writeHTML($html, true, 0, true, 0);

     

    I would like to pass it in the above way as the actual link I'm using is very long/tedious looking.

     

    Can anyone help here?

    need help with ssl on windows7/xampp

    in PHP Coding Help

    Posted

    Please help. I am running xampp for windows - it contains apache, ssl, php, mysql. I am unable to generate  a key/cert via php even though everything is apparently set up and running correctly. I ran a script and it said the following

     

    Warning: openssl_csr_sign() [function.openssl-csr-sign]: cannot get CSR from parameter 1 in C:\xampp\htdocs\cert.php on line 31

     

    Warning: openssl_csr_export() expects parameter 1 to be resource, boolean given in C:\xampp\htdocs\cert.php on line 40

     

    Warning: openssl_x509_export() [function.openssl-x509-export]: cannot get cert from parameter 1 in C:\xampp\htdocs\cert.php on line 41

     

    Warning: openssl_pkey_export() [function.openssl-pkey-export]: cannot get key from parameter 1 in C:\xampp\htdocs\cert.php on line 42

     

    error:02001003:system library:fopen:No such process error:2006D080:BIO routines:BIO_new_file:no such file error:0E064002:configuration file routines:CONF_load:system lib error:02001003:system library:fopen:No such process error:2006D080:BIO routines:BIO_new_file:no such file error:0E064002:configuration file routines:CONF_load:system lib error:02001003:system library:fopen:No such process error:2006D080:BIO routines:BIO_new_file:no such file error:0E064002:configuration file routines:CONF_load:system lib error:02001003:system library:fopen:No such process error:2006D080:BIO routines:BIO_new_file:no such file error:0E064002:configuration file routines:CONF_load:system lib

     

     

    cert.php

    <?php
$configargs = array(
    'config' => '../apache/bin/openssl.cnf',
    'digest_alg' => 'md5',
    'x509_extensions' => 'v3_ca',
    'req_extensions'   => 'v3_req',
    'private_key_bits' => 666,
    'private_key_type' => OPENSSL_KEYTYPE_RSA,
    'encrypt_key' => false,
    );

$dn = array(
    "countryName" => "IE",
    "stateOrProvinceName" => "cork",
    "localityName" => "cork",
    "organizationName" => "org",
    "organizationalUnitName" => "Organizational Unit Name",
    "commonName" => "example.com",
    "emailAddress" => "Email Address"
);

// Generate a new private (and public) key pair
$privkey = openssl_pkey_new($configargs);

// Generate a certificate signing request
$csr = openssl_csr_new($dn, $privkey);

// You will usually want to create a self-signed certificate at this
// point until your CA fulfills your request.
// This creates a self-signed cert that is valid for 365 days
$sscert = openssl_csr_sign($csr, null, $privkey, 365);

// Now you will want to preserve your private key, CSR and self-signed
// cert so that they can be installed into your web server, mail server
// or mail client (depending on the intended use of the certificate).
// This example shows how to get those things into variables, but you
// can also store them directly into files.
// Typically, you will send the CSR on to your CA who will then issue
// you with the "real" certificate.
openssl_csr_export($csr, $csrout) and var_dump($csrout);
openssl_x509_export($sscert, $certout) and var_dump($certout);
openssl_pkey_export($privkey, $pkeyout, "mypassword") and var_dump($pkeyout);

// Show any errors that occurred here
while (($e = openssl_error_string()) !== false) {
    echo $e . "\n";
}
?>

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