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<? | |
echo "Hello,World"; |
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require 'net/https' | |
require 'uri' | |
require 'json' | |
client_id = '' | |
client_secret = '' | |
topic_id = '' | |
msg = 'Hello!' | |
# setup a http client |
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[user|~]$ cd /etc/nginx/conf.d/ | |
[user|conf.d]$ sudo vi xxx.conf #xxxは自分のアプリケーション名でファイル名変更 |
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field = [[1,2],[3,4]] | |
# 連結 | |
# 12 | |
# 34 | |
field.each { |f| puts f.join("")} |
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array = [nil, 1, 2, 3, nil] | |
# nilを削除して計算 | |
p array.compact.inject(&:+) # 6 |
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<?php | |
$keyword_uppercase = 'XYZ'; | |
$keyword_lowercase = 'xyz'; | |
$text1 = 'abcXYZ'; | |
$text2 = 'abcXYZabcXYZ'; | |
// mb_strposの挙動 | |
// 大文字は文字は含まれていると判定される |
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<?php | |
$keyword_uppercase = 'XYZ'; | |
$keyword_lowercase = 'xyz'; | |
$text1 = 'abcXYZ'; | |
// mb_striposの挙動 | |
// 大文字は文字は含まれていると判定される | |
if (mb_stripos($text1, $keyword_uppercase) === false) { |
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<?php | |
// mbstrposの誤判定 | |
$keyword2 = 'DEF'; | |
$text2 = 'DEFghi'; | |
// 含まれていないと判定される | |
// mb_strposの戻り値が'0'の場合、誤判定するため | |
// mb_strposの判定は'==='で行うこと | |
if (mb_strpos($text2, $keyword2) == false) { |
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The difference between the request time and the current time is too large. |
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$ sudo apt-get update | |
$ sudo apt-get install postgresql-9.5 | |
パッケージリストを読み込んでいます... 完了 | |
依存関係ツリーを作成しています | |
状態情報を読み取っています... 完了 | |
E: パッケージ postgresql-9.5 が見つかりません | |
E: 正規表現 'postgresql-9.5' ではパッケージは見つかりませんでした |
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