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POComparing Array with more than one row
primarykey
Id
20630814
data
AcceptedAnswerId
20634412
AnswerCount
1
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CommentCount
5
CommunityOwnedDate
CreationDate
2013-12-17T09:48:39.833
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0
LastActivityDate
2013-12-17T14:37:46.510
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2013-12-17T14:37:46.510
LastEditorUserId
2257883
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2257883
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0
PostTypeId
1
Score
1
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78
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text
Body
I'm trying to compare 2 Arrays and output the difference in a separate array. I've made the following line of code to compare 2 Arrays; <pre><code>$INPUTdifference = array_udiff($userINPUT, $iptablesINPUT, function ($userINPUT, $iptablesINPUT) { return (int) ($userINPUT != $iptablesINPUT); }); </code></pre> When <code>userINPUT</code> contains one row for testing, and <code>iptablesINPUT</code> a few, it works flawlessly. However, whenever I add a second row in the userINPUT array, it completely stops working. It doesn't even give anything while I print the <code>INPUTdifference anymore</code> What is wrong here? EDIT; The way userINPUT is acquired; <pre><code>function getIPTablesINPUT() { /* ------------------------------ */ // INPUT CHAIN /* ------------------------------ */ $INPUTCOMMAND = popen('/usr/bin/sudo /sbin/iptables -L INPUT -nvx --line-numbers | tail -n +3', 'r'); $INPUTcontent = ''; while (!feof($INPUTCOMMAND)) { $INPUTcontent .= fread($INPUTCOMMAND, 4096); } pclose($INPUTCOMMAND); $INPUTlines = explode("\n", trim($INPUTcontent)); $INPUTresults = array(); $INPUTcounter = 0; foreach ($INPUTlines as $line) { $segments = preg_split('/[\s]+/', $line); $INPUTArray = array( 'num' => $segments[0], 'pkts' => $segments[1], 'bytes' => $segments[2], 'target' => $segments[3], 'prot' => $segments[4], 'opt' => $segments[5], 'in' => $segments[6], 'out' => $segments[7], 'source' => $segments[8], 'destination' => $segments[9] ); array_push($INPUTresults, $INPUTArray); $INPUTcounter++; } return $INPUTresults; } </code></pre> then, outside of the function <pre><code>$iptablesINPUT = getIPTablesINPUT(); </code></pre> Then, the way the rules in the data <pre><code>$dbconnection = pg_connect("host=x port=x dbname=x user=x password=xxxx") or die("Unable to connect to Postgres"); // INPUT table from userDB $userINPUTresult = pg_query($dbconnection, "SELECT * FROM \"INPUT\""); if (pg_affected_rows($userINPUTresult) === 1) { $userINPUTArray = pg_fetch_all($userINPUTresult); echo "INPUT CHAIN RULES LOADED \n"; } else { echo ("NO INPUT CHAIN RULES \n"); } </code></pre> ==== VAR DUMPS ==== var_dump $iptablesINPUT <pre><code>NULL array(2) { [0]=> array(10) { ["num"]=> string(1) "1" ["pkts"]=> string(1) "0" ["bytes"]=> string(1) "0" ["target"]=> string(4) "DROP" ["prot"]=> string(3) "all" ["opt"]=> string(2) "--" ["in"]=> string(1) "*" ["out"]=> string(1) "*" ["source"]=> string(9) "192.0.0.1" ["destination"]=> string(9) "0.0.0.0/0" } [1]=> array(10) { ["num"]=> string(1) "2" ["pkts"]=> string(1) "0" ["bytes"]=> string(1) "0" ["target"]=> string(4) "DROP" ["prot"]=> string(3) "all" ["opt"]=> string(2) "--" ["in"]=> string(1) "*" ["out"]=> string(1) "*" ["source"]=> string(9) "192.0.0.2" ["destination"]=> string(9) "0.0.0.0/0" } } </code></pre> var_dump $userINPUT <pre><code>NULL </code></pre> Apparentely this is the spot where something goes wrong... ==== EDIT 2 ====== This is the way I extract the arrays from the function out of the scope. <pre><code>// Slice up userDB arrays for comparing $userINPUT = $allRules[0]; $userOUTPUT = $allRules[1]; $userFORWARD = $allRules[2]; $userPOSTROUTING = $allRules[3]; $userPREROUTING = $allRules[4]; </code></pre>
Tags
<php><arrays>
Title
Comparing Array with more than one row
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USMichaelP
UserOwnerUserId
1. USMichaelP
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POComparing Array with more than one row
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId

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