165 行
5.4 KiB
PHP
165 行
5.4 KiB
PHP
<?php
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require_once("../config.php");
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/* val
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*
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* select => ["var1", "var2"...]
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* insert|update|where => ["key1" => "value1", "key2" => "value2"...]
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* order => ["var", "asc"|"desc"]
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* limit => int
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* */
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function lolidb (string $table, array $val, string $mode="select"): array|bool {
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// モードは違う場合、やめる。If the mode is wrong, stop.
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if ($mode != "select" && $mode != "one" && $mode != "insert" && $mode != "update" && $mode != "delete") {
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dd("モードは「select」、「one」、「insert」、「update」、「delete」です。\nMode should be \"select\", \"one\", \"insert\", \"update\", or \"delete\".");
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return false;
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}
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// 順のチェック。Check order.
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if (isset($val["order"])) {
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// selectかoneじゃない場合。If not select or one.
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if ($mode !== "select" || $mode !== "one") {
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dd("「order」は「select」又は「one」のみで使えます。\n\"order\" can only be used with \"select\" or \"one\".");
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return false;
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}
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// 複数の場合。If multiple.
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if (count($val["order"] > 1)) {
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dd("複数「order」は未対応です。\nMultiple \"order\" is not yet supported.");
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return false;
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}
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// ascかdescかどうか。Whether it"s asc or desc.
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foreach ($val["order"] as $k => $v) {
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if ($v !== "asc" && $v !== "desc") {
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dd("「order」は「asc」又は「desc」です。\n\"order\" should be \"asc\" or \"desc\".");
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return false;
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}
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}
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}
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// 限界のチェック。Check limit.
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if (($mode === "select" || $mode === "one") && isset($val["limit"])) {
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// oneの場合。If one.
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if ($mode === "one") {
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dd("「one」の場合、「limit」はいつでも「1」です。「limit」は1以上は必要の場合、「select」を使って下さい。\nIn case of \"one\", \"limit\" is always \"1\". If \"limit\" needs to be more than \"1\", please use \"select\".");
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return false;
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}
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// selectじゃない場合。If not select.
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else if ($mode !== "select") {
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dd("「insert」、「update」及び「delete」で、「limit」を使えません。\n\"limit\" cannot be used with \"insert\", \"update\", and \"delete\".");
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return false;
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}
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}
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// insertの場合。In case of insert.
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if ($mode === "insert" && !isset($val["insert"])) {
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dd("「insert」モードの場合、「insert」値は必須です。\nIn case of \"insert\" mode, \"insert\" value is necessary.");
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return false;
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}
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// updateの場合。In case of update.
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if ($mode === "update" && !isset($val["update"])) {
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dd("「update」モードの場合、「update」値は必須です。\nIn case of \"update\" mode, \"update\" value is necessary.");
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return false;
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}
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// MySQLiの創作。Creation of MySQLi.
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$mysqli = mysqli_connect(DB_HOST, DB_USER, DB_PASS, DB_TABLE);
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$result = null;
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if ($mode == "select" || $mode == "one") {
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// select値がなければ、全部を選択する。If there is no select value, select everything.
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if (!isset($val["select"])) {
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$val["select"] = ["*"];
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}
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$query = "SELECT ".$val["select"]." FROM ".$table;
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if (isset($val["where"])) {
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$query .= " WHERE ";
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foreach ($val["where"] as $k => $v) {
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$query .= $k." = ".$v;
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if ($k !== array_key_last($val["where"])) $query .= " AND ";
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}
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}
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if (isset($val["order"])) {
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$query .= " ORDER BY ";
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foreach ($val["order"] as $k => $v) {
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$query .= $k;
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$query .= " ".strtoupper($v);
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}
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}
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if ($mode == "one") {
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$query .= " LIMIT 1";
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}
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else {
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if (isset($val["limit"])) {
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$query .= " LIMIT ".(int)$val["limit"];
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}
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}
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$result = mysqli_query($mysqli, $query.";");
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$row = mysqli_fetch_assoc($result);
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}
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else {
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if ($mode == "insert") {
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$query .= "INSERT INTO ".$table." (";
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foreach ($val["insert"] as $k => $v) {
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$query .= $k;
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if ($k !== array_key_last($val["insert"])) {
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$query .= ", ";
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}
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}
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$query .= ") VALUES (";
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foreach ($val["insert"] as $k => $v) {
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$query .= $v;
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if ($k !== array_key_last($val["insert"])) {
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$query .= ", ";
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}
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}
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$query .= ")";
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}
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else if ($mode == "update") {
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$query .= "UPDATE ".$table." SET ";
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foreach ($val["update"] as $k => $v) {
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$query .= $k." = ".$v;
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if ($k !== array_key_last($val["update"])) {
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$query .= ", ";
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}
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}
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if (isset($val["where"])) {
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$query .= " WHERE ";
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foreach ($val["where"] as $k => $v) {
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$query .= $k." = ".$v;
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if ($k !== array_key_last($val["where"])) {
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$query .= " AND ";
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}
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}
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}
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}
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else if ($mode == "delete") {
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$query .= "DELETE FROM ".$table;
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if (isset($val["where"])) {
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$query .= " WHERE ";
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foreach ($val["where"] as $k => $v) {
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$query .= $k." = ".$v;
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if ($k !== array_key_last($val["where"])) {
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$query .= " AND ";
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}
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}
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}
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}
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$stmt = mysqli_prepare($mysqli, $query.";");
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}
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return $row;
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}
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?>
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