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POCheck through an array and identify matching numbers
 

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    <p>I am working on a scratch card game where by a user purchases a scratch card from me/my store and can then redeem said card by scratching off numbers and matching 3 pictures to win a prize</p> <p>Like physical scratch cards I want the prizes to be pre configured so that I know when a prize will be won, but obviously the users dont, this is so I can limit the prizes, so it is not true random, but will be random in terms of who wins the prize..</p> <p>I know how I will setup the prizes but I need to check each data value in an array to ensure that there is not 3 matching numbers, unless they have actually won..</p> <p>So far I have this (I will neaten it up and shorten the code down soon)</p> <pre><code>$numbers = array( 0 =&gt; rand(0,9), 1 =&gt; rand(0,9), 2 =&gt; rand(0,9), 3 =&gt; rand(0,9), 4 =&gt; rand(0,9), 5 =&gt; rand(0,9), 6 =&gt; rand(0,9), 7 =&gt; rand(0,9), 8 =&gt; rand(0,9) ); </code></pre> <p>Which just randomly generates 9 numbers and </p> <pre><code>echo "&lt;table&gt;"; $i=0; for($x=0;$x&lt;3;$x++){ echo "&lt;tr&gt;"; for($y=0;$y&lt;3;$y++){ echo "&lt;td&gt;" . $numbers[$i] . "&lt;/td&gt;"; $i++; } echo "&lt;/tr&gt;"; } </code></pre> <p>Sorts them into a 3x3 table</p> <p>I know there is the command in_array() which will sort through the array looking for certain values but I dont want to run an endless loop checking each value to see if I get a match, because it's labor intensive and would be messy as well.</p> <p>I'm looking for a suggestion anyone might have so I can sort through the array and see if any 3 numbers exist, if they do, and they're not suppost to (ie the user hasn't actually won a prize) then one should be changed to a new number.</p> <p>So thank you in advance for your help guys I look forward to your suggestions</p> <p>Luke</p> <p><em><strong></em>**<em>*</em>*</strong> EDIT <strong><em>*</em>*</strong></p> <p>+More info</p> <p>To pick the winners I will use a database query such as this</p> <pre><code>$stock = $conn -&gt; query("SELECT DISTINCT * FROM codes WHERE Available = 1 AND 0 = FLOOR(RAND()*Chance) ORDER BY RAND()"); </code></pre> <p>Each code will have a set chance to win and if it matches up it will be shown, depending on the code won a certain prize will show </p> <pre><code>$stock = $conn -&gt; query("SELECT DISTINCT * FROM codes WHERE Available = 1 AND Win = 1); </code></pre> <p>'Win' will be a table in the database which each time someone plays the game it goes down by 1</p> <p>So each code will have the table Win which when it hits 1 it will pop out the in the next game</p> <p>These are two ways I can think of doing it which I think will work, both ways roughly allow me to control when and if someone wins but the second solution is obviously a more accurate way of doing it </p>
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