CODEWITHSUNDEEP
phparrays
user2975210
user2975210

Reputation: 1

Using only the last item in an array?

I have the array (the tx array specifcally) below and only want the last one in the array (in this case, 32).

How can this be done? Also, is it possible to add the #s in the array?

For example: 1+2+3...+31+32?

Thanks to anyone that offers help.

Array
(
    [hash] => f52ba5e38ad3a86f54d901fafdb149cbcc190da45783fcdf3099ca272c452289
    [confirmations] => 1
    [size] => 10111
    [height] => 457209
    [version] => 2
    [merkleroot] => 760639a16ade9568c84c3b6ef830b88bc744cb0dc7a35875553852d478f0a4df
    [tx] => Array
        (
            [0] => 4340529c70443dbc9c476b65201307a232ea9aca80d9bcb231d5d302acc2997a
            [1] => cde0d2a5311a981e82dbd8b856a64659f953fbb050246f21beb90cc6595f1ff4
            [2] => 8c01dc9ac687a8ca6e51faf1f882c1ec523046d74a9587500751508b5a6be83d
            [3] => d9777b6ace68484dc723a7e892da6ead5b32d4f1d9ef236a27f76d77500de144
            [4] => 9c4895e4921600d1fbf998115b352254cea94efa9791d3c32be139a6bc2d733a
            [5] => f47314ae4cd118c2b824562f29874209f9cfbd47735bf10f92adfe6cd6a273f8
            [6] => 53b6c6efcdfb0ed13a39d6602f9a1e1e577fbfb30067b839aa779492b8ec16bc
            [7] => f52877a1929ba516261b0cb21603fa30e815ad0b1122f9ec07ce25d9a1c84b0a
            [8] => 615851304a629f490e8fca80be73e6e4eb42e31080fb0827b7387ea97a7d57a8
            [9] => 1df62c690f898cb2328f9a6de25b74f62c8c03ef401ff5e45a7837360302873a
            [10] => e0c787691988d4424e5ae5f9a185a9fbd810b27fd32428041f69f2012155ebe5
            [11] => b20568aeaaffa1beec8b1bc0d4acbbf36a06f1d01093af98e539fcf7a42a67cc
            [12] => 84504f0f3cb0b01b33388639a29b113e8bee467823062f916910d0f6675a2ff3
            [13] => 8af937c341c652a6c9d4cd7e99cf5bb0ac80d0259f02831dc761f5c6f04c0176
            [14] => 3e4e1195900cd9dc238b31784cb366cfb3a9c24e52dfda4eadbc0483f73a5430
            [15] => 1301c674da30547039da4a5cb252576d421d4546acadbcbe08e4cbe72ef9fb41
            [16] => b0564d650cc2c041204122396ffd3fc69b6ea4d7338a9a68f3bf7d8ca8dab319
            [17] => 7861d486982df4ecfd72916663fde4facabfbfbe8606e2f92924233090d5fe51
            [18] => 6e447ebcd20e4dc0e939a33612dc08f5f17bbccdfaa8eaddb52e81e2a7a19af8
            [19] => 7a473f7c7829b3fc0423ed1f3be2dd5f3bc875adce440badd9191206a3135c4e
            [20] => d15c965a52c038b5df3295719072a7ff1820f62f569ca7b393f9537ea98c34af
            [21] => a954bb3ee5923592f150640e4b0aa9c8e75f218412c0856ede4df8885156c41f
            [22] => d6e90a235a5293a7d1655ca2a26871b8e1ff19ffa3d48bd8ebac785b55faa996
            [23] => 5f2c7854b13aa129d147fa095f8b5df4b68000322d37531703a40c1fbd42e467
            [24] => 00299a2efa03dee409650d267f873167afd84b52978d34d256cd3d91efdbecc7
            [25] => 1e136bf8ed16cbeca589e265d86db4ca2abc17207ebe871ef63042c8054a912e
            [26] => 8419ed271faa0fd56d8d37fdd4ba97b2b694a5faaaf6027a5f054f1954bad5ec
            [27] => d7c0246d271a877453f88e0ff5146110d9dc6e650e647d969e9cca7cfe330e7e
            [28] => 591ea2baa8441a0fff5cd86e19730c828fcb259c22379c10e5841e17308f41ec
            [29] => 7a6f9baa6d5a312ec0aeca576948787ec2cf214f6587e970a05f9d410144179f
            [30] => 1c45cde908c7cb6479cab71709f7022540386b5b32765b149cae892d8dc0430f
            [31] => 612e16a6d56aba216c582b71f4942b9f8c5aa3b58fc9f9ce06c8a59006b52bb8
            [32] => 451826b51c3f95a968bde0e79ba526e251c22953dd84b8248cc83c679e360182
        )

    [time] => 1384044294
    [nonce] => 224330496
    [bits] => 1b3ade18
    [difficulty] => 1113.26182029
    [previousblockhash] => 3fec0492c75946e4bcf8b5ddd4cb2ca667c5b892df5bf0df1f68de2d9c7ff366
)

Upvotes: 0

Views: 55

Answers (3)

Paulo Freitas
Paulo Freitas

Reputation: 13649

end($array['tx']);
print key($array['tx']); # 32

Even better:

print end(array_keys($array['tx'])); # 32

If the indexes are continuous:

print count($array['tx']) - 1; # 32

To set $array['#s']:

$array['#s'] = array_sum(array_keys($array['tx']));

Upvotes: 0

Daniel
Daniel

Reputation: 4946

$array['tx']Use end

Say that array you have is $array.

$tx_array = $array['tx']

The last entry is

$last = end($tx_array);

last key 

$lastkey = end(array_keys($tx_array));

Upvotes: 0

John
John

Reputation: 584

Test with end of PHP function

end() advances array's internal pointer to the last element, and returns its value.

$fruits = array('apple', 'banana', 'cranberry');
echo end($fruits); // cranberry

UPADATE

$data = array('hash' => 'f52ba5e38ad3a86f54d901fafdb149cbcc190da45783fcdf3099ca272c452289',
'confirmations' => 1,
'size' => 10111,
'height' => '457209',
'version' => 2,
'merkleroot' => '760639a16ade9568c84c3b6ef830b88bc744cb0dc7a35875553852d478f0a4df',
'tx' => array ('4340529c70443dbc9c476b65201307a232ea9aca80d9bcb231d5d302acc2997a','cde0d2a5311a981e82dbd8b856a64659f953fbb050246f21beb90cc6595f1ff4', '8c01dc9ac687a8ca6e51faf1f882c1ec523046d74a9587500751508b5a6be83d')
);

echo key( array_slice( $data['tx'], -1, 1, TRUE ) );

Upvotes: 4

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