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14740478
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2013-02-06T22:56:13.210
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2014-04-03T14:58:36.277
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2014-04-03T14:58:36.277
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1681451
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15
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text
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A bit more detail. <h2>Functionality</h2> <ol> <li><code>array_pop()</code>pops an element off end of the array.</li> <li><code>array_push()</code> pushes an element into the end of the array.</li> <li><code>array_shift()</code> pops an element off the beginning of the array.</li> <li><code>array_unshift()</code> pushes an element into the beginning of the array. </li> </ol> <h2>Beautiful Matrix</h2> Here’s a beautiful matrix that shows each function in respect to the others. Notice the symbolic arrows. <blockquote>                        Beginning                        End Pop from         <-<code>array_shift()</code>        <code>array_pop()</code>-> Push into        -><code>array_unshift()</code>    <code>array_push()</code><- </blockquote> It was real uneasy to create it with SO’s markup restrictions. Click on edit to check out the source (and of course feel free to enhance it)! <h2>Shift VS. Unshift confusion</h2> So. When trying to memorize all 4 functions, it was very easy for me to learn what <code>array_pop()</code> does: it just pops an element off the end of array. Naturally, the functionality of the complementary <code>array_push()</code> was absolutely clear from the first shot too: it pushes an element back into the end. However, the two opposite brothers <code>array_shift()</code> and <code>array_unshift()</code> kept giving me hard time when I was trying to remember which one pops and which one pushes. :-/ I had to constantly look it up. Funny, the solution I came up with was simply the letter “U”. Those that have it: <code>array_pUsh()</code> and <code>array_Unshift()</code> - pUsh. The other two - pop. Easy-peasy! Hope this helps anyone!
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1. POWhat is the function that does the opposite of array_pop()?
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1. PTAnswer
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1. USGeo
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1. USGeo
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