Category: PHP

ところで、ゼロ埋めってどうやるのか？

$id = 2;
$order_id = sprintf("%05d", $id);

echo $id . "<br>";
echo $order_id;

sprintfを使えばいいのね。なるほど。

$zipcode = ["100-0001","1000001","abcdefg"];
foreach($zipcode as $data){
	if(preg_match("/^(([0-9]{3}-[0-9]{4})|([0-9]{7}))$/", $data)){
		echo $data . " is ok<br>";
	} else {
		echo $data . " is not zipcode<br>";
	}
}

ハイフン有りのみの場合は

/^[0-9]{3}-[0-9]{4}$/

電話番号

/^(([0-9]{2,4}-[0-9]{2,4}-[0-9]{3,4})|([0-9]{8,11}))$/

OK、これでカスタムバリデーションを作っていく

### CSVの作成
– 文字化けしないよう、stream_filter_prepend($f,’convert.iconv.utf-8/cp932′);の一文を挿入する

$ary = [
	["名前", "年齢", "血液型", "備考"],
	["山田", "12", "O",""],
	["田中", "20", "A",""],
	["吉田", "18", "AB",""],
	["伊藤", "19", "B", "エンジニア"]
]; 

$filename = "test.csv";
$f = fopen($filename, "w");
stream_filter_prepend($f,'convert.iconv.utf-8/cp932');
if($f) {
	foreach($ary as $line){
		fputcsv($f, $line);
	}
}

fclose($f);

### 配列にカラムを追加

$ary = [
	// ["名前", "年齢", "血液型", "備考"],
	["山田", "12", "O",""],
	["田中", "20", "A",""],
	["吉田", "18", "AB",""],
	["伊藤", "19", "B", "エンジニア"]
]; 
$column = ["名前", "年齢", "血液型", "備考"];

array_unshift($ary,$column);

### 配列の途中に空白を追加

$column = ["名前", "年齢", "血液型", "備考"];

array_splice($column, 1, 0, "");

echo "<pre>";
var_dump($column);
echo "</pre>";

### 二次元配列の途中に空白を追加

// DBから抽出
$ary = [
	["山田", "12", "O",""],
	["田中", "20", "A",""],
	["吉田", "18", "AB",""],
	["伊藤", "19", "B", "エンジニア"]
]; 

// 空白追加
foreach($ary as $key => $value){
	 array_splice($ary[$key], 1, 0, "");
}

// カラム追加
$column = ["名前", "無記入", "年齢", "血液型", "備考"];
array_unshift($ary, $column);

echo "<pre>";
var_dump($ary);
echo "</pre>";

これでCSVをエクスポートすると…

### csv.fileのダウンロード

$filename = "test.csv";
header('Content-Type: application/octet-stream');
header('Content-Length: '.filesize($filename));
header('Content-Disposition: attachment; filename=test.csv');

readfile($filename);

作成とダウンロードを一緒にやる場合の方が多いと思うが、予め作成したcsvファイルをダウンロードするだけ、ということも可能。
OK, 次行こう。

$ary = [
	"いちご" => 1,
	"バナナ" => 2
];

foreach($ary as $key => $value){
	if($key == "いちご"){
		$ary["いちご"] = $value + 3;
	}
}
echo "<pre>";
var_dump($ary);
echo "</pre>";

なるほど、これを応用する

$ary = [
	"A商事" => 1200,
	"B商事" => 2000
];


$name ="C商事";
$subtotal = 2000;

foreach($ary as $key => $value){
	if($key == $name){
		$ary[$key] = $value + $subtotal;
	} else {
		$ary[$name] = $subtotal;
	}
}

echo "<pre>";
var_dump($ary);
echo "</pre>";

OK, これをLaravelでやりたい。

$ary = [
	"fruits" => ["apple", "banana"],
	"animal" => ["monkey", "cat"]
];

$ary["fruits"][] = "kui";

foreach($ary as $key => $value){
	echo "-" . $key . "<br>";
	foreach($value as $k => $v){
		echo $v . " ";
	}
	echo "<br>";
}

– 二次元配列の中に配列を入れたい

$ary = [
	"A商事" => [
		"注文1" => ["商品1", "500円", "3個", "1500円"],
		"注文2" => ["商品2", "600円", "2個", "1200円"]
	],
	"B商事" => [
		"注文3" => ["商品3", "700円", "1個", "700円"]
	]
];

$ary["B商事"]["注文4"] = ["商品4", "200円", "10個", "2000円"];

echo "<pre>";
var_dump($ary);
echo "</pre>";

これを呼び出したい

foreach($ary as $key => $value){
	echo "-". $key . "<br>";
	foreach($value as $k => $v){
		echo $k. ":";
		foreach($v as $n => $data){
			echo $data . " ";
		}
	}
	echo "<br>";
}

OK、　これに$keyごとの小計を加えたい

配列の中に配列

$ary = [
["a", "b", "c", "d"],
["e", "f", "g", "h"],
["i", "j", "k", "l"]
];

echo "<pre>";
var_dump($ary);
echo "</pre>";

配列の追加

$ary = [
// 省略
];

$ary[] = ["m", "n", "o", "p"];

多次元配列

$ary = [
	"fruits" => ["apple", "banana"],
	"animal" => ["monkey", "cat"]
];

多次元配列の追加

$ary = [
	"fruits" => ["apple", "banana"],
	"animal" => ["monkey", "cat"]
];

$ary_b = [
	"contory" => ["japan","usa"]
];


echo "<pre>";
var_dump(array_merge($ary, $ary_b));
echo "</pre>";

ただこれ、下のようにやると、fruitsが上書きされてしまうな。

$ary = [
	"fruits" => ["apple", "banana"],
	"animal" => ["monkey", "cat"]
];

$ary_b = [
	"fruits" => ["kui"]
];

こうすると上手くいく

$ary = [
	"fruits" => ["apple", "banana"],
	"animal" => ["monkey", "cat"]
];

$ary["fruits"][] = "kui";

echo "<pre>";
var_dump($ary);
echo "</pre>";

OK, これを応用して考える