| 目次 |
|---|
|
・配列 ・配列のソート ・配列に要素を追加 ・配列の要素を削除 ・配列の指定した要素を置換または削除 ・配列の長さを調べる |
$arr = array("test1","test2""test3");
$arrは配列変数になります。また配列の要素は以下のように添え字で取り出すことが出来ます。基底は0です。print $arr[0]."¥n"; print $arr[1]."¥n"; print $arr[2]."¥n";
#!/usr/bin/php
<?php
$arr = array("test2","test5","test3","test7","test1","test4","test6");
sort($arr);
foreach($arr as $key=>$val){
print $key. ":".$val."\n";
}
?>
0:test1 1:test2 2:test3 3:test4 4:test5 5:test6 6:test7
<?php
$arr = array("test1","test2");
array_push($arr,"test3","test4");
print_r($arr);
?>
Array
(
[0] => test1
[1] => test2
[2] => test3
[3] => test4
)
<?php
$arr = array("test1","test2");
array_unshift($arr,"test3","test4");
print_r($arr);
?>
Array
(
[0] => test3
[1] => test4
[2] => test1
[3] => test2
)
<?php
$arr = array("test1","test2","test3","test4");
array_pop($arr);
print_r($arr);
?>
Array
(
[0] => test1
[1] => test2
[2] => test3
)
<?php
$arr = array("test1","test2","test3","test4");
array_shift($arr);
print_r($arr);
?>
Array
(
[0] => test2
[1] => test3
[2] => test4
)
<?php
$arr1 = array("test1","test2","test3","test4");
array_splice($arr1,2);
print_r($arr1);
$arr2 = array("test1","test2","test3","test4");
array_splice($arr2,2,1);
print_r($arr2);
?>
Array
(
[0] => test1
[1] => test2
)
Array
(
[0] => test1
[1] => test2
[2] => test4
)
<?php
$arr1 = array("test1","test2","test3","test4");
array_splice($arr1,2,1,"test5");
print_r($arr1);
$arr2 = array("test1","test2","test3","test4");
$arr3 = array("err1","err2","err3");
array_splice($arr2,2,3,$arr3);
print_r($arr2);
?>
Array
(
[0] => test1
[1] => test2
[2] => test5
[3] => test4
)
Array
(
[0] => test1
[1] => test2
[2] => err1
[3] => err2
[4] => err3
)
<?php
$arr = array(1,2,3);
for($i = 0;$i
1
2
3