How to enable javascript in client machine using PHP?

Is there any way t开发者_运维问答o enable JavaScript on the client machine using PHP?

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You can't do such a thing. It's impossible to modify user preferences stored on their local machines.

You can ask them to enable javascript if it's not the case using the noscript tag.

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No, as neither the HTTP protocol or HTML have a feature to do this. To have a website able to enable JavaScript would also be a breach of security. There is also no guarentee that the users browser has JavaScript.

You may wish to look at the <noscript> tags, which allow you to display a message to the user when JavaScript is not active.