в 10:37, 26 мая 2010

2010-05-26T10:37:25Z

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2010-05-26T07:02:52Z

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==Array array_chunk==



<source lang="html4strict">
<?php
$cards = array("A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P");
// shuffle the cards
print_r($cards);

print " ";
shuffle($cards);
// Use array_chunk() to divide the cards into four equal "hands"
$hands = array_chunk($cards, 4);
print_r($hands);
?>

</source>

==array_combine: Creates an array by using one array for keys and another for its values==



<source lang="html4strict">

<?php
$abbreviations = array("AL","AK","AZ","AR");
$states = array("Alabama","Alaska","Arizona","Arkansas");
$stateMap = array_combine($abbreviations,$states);
print_r($stateMap);
?>

</source>

==Array count value==



<source lang="html4strict">
<?php
$states = array("Ohio","Iowa","Arizona","Iowa","Ohio");
$stateFrequency = array_count_values($states);
print_r($stateFrequency);
?>

</source>

==array_diff_assoc: Array difference for associate array==



<source lang="html4strict">

<?php
$array1 = array("OH" => "Ohio", "CA" => "California", "HI" => "Hawaii");
$array2 = array("50" => "Hawaii", "CA" => "California", "OH" => "Ohio");
$array3 = array("TX" => "Texas", "MD" => "Maryland", "KS" => "Kansas");
$diff = array_diff_assoc($array1, $array2, $array3);
print_r($diff);
?>

</source>

==array_flip: Exchanges all keys with their associated values in an array==



<source lang="html4strict">
<?php
$state = array("Delaware","Pennsylvania","New Jersey");
$state = array_flip($state);
print_r($state);
// Array ( [Delaware] => 0 [Pennsylvania] => 1 [New Jersey] => 2 )
?>

</source>

==array_merge_recursive: Merge two or more arrays recursively==



<source lang="html4strict">
<?php
$class1 = array("A" => 100, "C" => 85);
$class2 = array("B" => 78, "D" => 45);
$classScores = array_merge_recursive($class1, $class2);
print_r($classScores);
?>

</source>

==array_multisort: Sort multiple or multi-dimensional arrays==



<source lang="html4strict">

<?php
$staff["givenname"][0] = "A";
$staff["givenname"][1] = "B";
$staff["givenname"][2] = "C";
$staff["givenname"][3] = "D";
$staff["surname"][0] = "E";
$staff["surname"][1] = "F";
$staff["surname"][2] = "G";
$staff["surname"][3] = "H";
$res = array_multisort($staff["surname"],SORT_STRING,SORT_ASC,$staff["givenname"],SORT_STRING,SORT_ASC);
print_r($staff);
?>

</source>

==array_pad: Pad array to the specified length with a value==



<source lang="html4strict">

<?php
$states = array("A","B");
print "before pad: ";
print_r($states);
$states = array_pad($states,4,"C");
$states = array("A","B","C","D");
print " after pad: ";
print_r($states);
?>

</source>

==array_rand: Pick one or more random entries out of an array==



<source lang="html4strict">

<?php
$states = array("Ohio" => "Columbus", "Iowa" => "Des Moines","Arizona" => "Phoenix");
$randomStates = array_rand($states, 2);
print_r($randomStates);
?>

</source>

==array_reverse: Return an array with elements in reverse order==



<source lang="html4strict">
<?php
$states = array("A","B","C");
print "Before reverse: ";
print_r($states);
print " After reverse: ";
print_r(array_reverse($states));
?>

</source>

==array_search: Searches the array for a given value and returns the corresponding key if successful==



<source lang="html4strict">

<?php
$state["Ohio"] = "March 1";
$state["Delaware"] = "December 7";
$state["Pennsylvania"] = "December 12";
$founded = array_search("December 7", $state);
if ($founded) echo "The state $founded was founded on $state[$founded]";
?>

</source>

==Array shuffle==



<source lang="html4strict">
<?php
$cards = array("A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P");
// shuffle the cards
print_r($cards);

print " ";
shuffle($cards);
// Use array_chunk() to divide the cards into four equal "hands"
$hands = array_chunk($cards, 4);
print_r($hands);
?>

</source>

==array_splice: Remove a portion of the array and replace it with something else==



<source lang="html4strict">

<?php
$states = array("Alabama", "Alaska", "Arizona", "Arkansas", "California", "Connecticut");
$subset = array_splice($states, 2, -1, array("New York", "Florida"));
print_r($states);
?>

</source>

==array_sum: Calculate the sum of values in an array==



<source lang="html4strict">
<?php
$grades = array(42,"hello",42);
$total = array_sum($grades);
print $total;
?>

</source>

==array_unshift==



<source lang="html4strict">
<?php
$states = array("A","B");
print "before unshift: ";
print_r($states);
array_unshift($states,"D","E");
print " after unshift: ";
print_r($states);
?>

</source>

==count() function can also be used to access certain elements in the array==



<source lang="html4strict">

<?php
$employee []= "A";
$employee []= "B";
$employee []= "C";
$employee []= "D";
echo $employee [count ($employee)-1];
?>

</source>

==current: Return the current element in an array==



<source lang="html4strict">

<?php
$fruits = array("apple", "orange", "banana");
print_r($fruits);
$fruit = current($fruits); // returns "apple"
echo "Fruit: $fruit ";
$fruit = next($fruits); // returns "orange"
echo "Fruit: $fruit ";
$fruit = prev($fruits); // returns "apple"
echo "Fruit: $fruit ";
?>

</source>

==end: Set the internal pointer of an array to its last element==



<source lang="html4strict">
<?php
$fruits = array("apple", "orange", "banana");
print_r($fruits);
$fruit = current($fruits); // returns "apple"
echo "Current: $fruit ";
$fruit = end($fruits); // returns "banana"
echo "End: $fruit ";
?>

</source>

==in_array: Checks if a value exists in an array==



<source lang="html4strict">

<?php
$grades = array(100,94.7,67,89,100);
if (in_array("100",$grades))
echo "Somebody studied for the test!";

if (in_array("100",$grades,1))
echo "Somebody studied for the test!";
?>

</source>

==next: Advance the internal array pointer of an array==



<source lang="html4strict">

<?php
$fruits = array("apple", "orange", "banana");
print_r($fruits);
$fruit = next($fruits); // returns "orange"
echo "Next fruit: $fruit ";
$fruit = next($fruits); // returns "banana"
echo "Next fruit: $fruit ";
?>

</source>

==The count() Function==



<source lang="html4strict">

<?php
$employee []= "A";
$employee []= "B";
$employee []= "C";
$employee []= "D";
echo count ($employee);
?>

</source>

==Using the array_diff () Function==



<source lang="html4strict">
<?php
$arrayone = array ("A", "B", "C", "D");
$arraytwo = array ("C", "D", "E", "F");
$diff = array_diff ($arrayone, $arraytwo);
foreach ($diff as $val) {
echo "$val", "\n";
}
?>

</source>

==Using the array_intersect () Function==



<source lang="html4strict">
<?php
$arrayone = array ("A", "B", "C", "D");
$arraytwo = array ("C", "D", "E", "F");

$similarity = array_intersect ($arrayone, $arraytwo);
foreach ($similarity as $val) {
echo "$val", "\n";
}
?>

</source>

==Using the array_merge () Function==



<source lang="html4strict">

<?php
$arrayA = array ("A", "B", "C", "D", "E");
$arrayB = array (1, 2, 3, 4);
$arrayAB = array_merge ($arrayA, $arrayB);
echo "The number of elements in \$arrayAB are: ", "\n";
foreach ($arrayAB as $val) {
echo "$val", "\n";
}
?>

</source>

==Using the array_push () Function==



<source lang="html4strict">

<?php
$vocalists = array ("A", "B", "C");
$musicians = array_push($vocalists, "D", "E", "F");
echo "The total number of musicians are $musicians:", "\n";
foreach ($vocalists as $val) {
echo "$val", "\n";
}
?>

</source>

==Using_the array_shift () Function==



<source lang="html4strict">

<?php
$music = array ("A", "B", "C", "D");
while (count ($music)) {
$somevalue = array_shift ($music);
echo "$somevalue", " ";
echo count ($music);
echo " ";
}
?>

</source>

==Using the array_slice () Function==



<source lang="html4strict">
<?php
$musicgenre = array ("A","B","C","D","E","F","G");
echo "array_slice ($musicgenre, 4, 2):", " ";
$Dave = array_slice ($musicgenre, 4, 2);
foreach ($Dave as $valone) {
echo "$valone", " ";
}
echo " ";
echo "array_slice ($musicgenre, 1, 3):", " ";
$Brad = array_slice ($musicgenre, 1, 3);
foreach ($Brad as $valtwo) {
echo "$valtwo", " ";
}
echo " ";
echo "array_slice ($musicgenre, 3, 3):", " ";
$Joe = array_slice ($musicgenre, 3, 3);
foreach ($Joe as $valthree) {
echo "$valthree", " ";
}
echo " ";
echo "array_slice ($musicgenre, -4, 2):", " ";
$Rick = array_slice ($musicgenre, -4, 2);
foreach ($Rick as $valfour) {
echo "$valfour", " ";
}

echo " ";
echo "array_slice ($musicgenre, 1):", " ";
$John = array_slice ($musicgenre, 1);
foreach ($John as $valfive) {
echo "$valfive", " ";
}
?>

</source>

==Using the array_unique () Function==



<source lang="html4strict">

<?php
$oldarray = array ("A", "B", "C", "D", "E", "F");
$newarray = array_unique ($oldarray);

foreach ($newarray as $val) {
echo "$val", "\n";
}
?>

</source>

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в 10:37, 26 мая 2010

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