PHP7 - 函数ereg_replace已弃用[重复]

I'm pretty new to PHP (we're talking about a couple of days ;) and I have a problem I cannot resolve myself by now.

The function ereg_replace is deprecated, so I need to replace it with preg_replace as far as I understand.

How do I do that for "function ereg_replace ($pattern, $replacement, $string) {}"? Is there a guide or something?

Cheers, Ruby

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