php create file if not exist

php create file if not exist

Is there a way to create an index in MySQL if it does not exist? MySQL does not support the obvious format: CREATE INDEX IF NOT EXISTS index_name ON table(column) ERROR ...

相關軟體 Flock 下載

Flock是另一個好用的瀏覽器。剛開始的Flock跟火狐是用相同的核心,因此操作方式會與火狐有些相似,但近來年,改成與 Google Chrome相同的核心,速度變快許多。其中最大的特色是可以整合目前最流行的社交網站,包含 FACEBOOK,Twitter,LinkedIn,YouTube等。同時操作方式跟Chrome非常相似,也會自動記錄密碼等常用網站的功能,非常好用。 ...

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    https://stackoverflow.com
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