PHP foreach 구문 사용법
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작성자 관리자 (61.♡.26.87) 작성일 19-12-31 15:04 조회 3,901 댓글 0본문
PHP foreach 구문 사용법
[code]
/* foreach example 1: value only */
$a = array(1, 2, 3, 17);
foreach ($a as $v) {
echo "Current value of \$a: $v.\n";
}
/* foreach example 2: value (with its manual access notation printed for illustration) */
$a = array(1, 2, 3, 17);
$i = 0; /* for illustrative purposes only */
foreach ($a as $v) {
echo "\$a[$i] => $v.\n";
$i++;
}
/* foreach example 3: key and value */
$a = array(
"one" => 1,
"two" => 2,
"three" => 3,
"seventeen" => 17
);
foreach ($a as $k => $v) {
echo "\$a[$k] => $v.\n";
}
/* foreach example 4: multi-dimensional arrays */
$a = array();
$a[0][0] = "a";
$a[0][1] = "b";
$a[1][0] = "y";
$a[1][1] = "z";
foreach ($a as $v1) {
foreach ($v1 as $v2) {
echo "$v2\n";
}
}
/* foreach example 5: dynamic arrays */
foreach (array(1, 2, 3, 4, 5) as $v) {
echo "$v\n";
}
[/code]
[code]
$employee_list = array(
'Programmer' => 'Edward',
'Designer' => 'Alex'
);
foreach($employee_list as $row)
{
echo $row."<br/>";
}
[/code]
[code]
$employee_list = array(
'Programmer' => 'Edward',
'Designer' => 'Alex'
);
foreach($employee_list as $key => $value)
{
echo $key." : ".$value."<br/>";
}
[/code]
* 참고
https://www.php.net/manual/en/control-structures.foreach.php
https://extbrain.tistory.com/24
[code]
/* foreach example 1: value only */
$a = array(1, 2, 3, 17);
foreach ($a as $v) {
echo "Current value of \$a: $v.\n";
}
/* foreach example 2: value (with its manual access notation printed for illustration) */
$a = array(1, 2, 3, 17);
$i = 0; /* for illustrative purposes only */
foreach ($a as $v) {
echo "\$a[$i] => $v.\n";
$i++;
}
/* foreach example 3: key and value */
$a = array(
"one" => 1,
"two" => 2,
"three" => 3,
"seventeen" => 17
);
foreach ($a as $k => $v) {
echo "\$a[$k] => $v.\n";
}
/* foreach example 4: multi-dimensional arrays */
$a = array();
$a[0][0] = "a";
$a[0][1] = "b";
$a[1][0] = "y";
$a[1][1] = "z";
foreach ($a as $v1) {
foreach ($v1 as $v2) {
echo "$v2\n";
}
}
/* foreach example 5: dynamic arrays */
foreach (array(1, 2, 3, 4, 5) as $v) {
echo "$v\n";
}
[/code]
[code]
$employee_list = array(
'Programmer' => 'Edward',
'Designer' => 'Alex'
);
foreach($employee_list as $row)
{
echo $row."<br/>";
}
[/code]
[code]
$employee_list = array(
'Programmer' => 'Edward',
'Designer' => 'Alex'
);
foreach($employee_list as $key => $value)
{
echo $key." : ".$value."<br/>";
}
[/code]
* 참고
https://www.php.net/manual/en/control-structures.foreach.php
https://extbrain.tistory.com/24
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