I need to validate phone number in PHP. I have made following regex, but I also need to it to accept numbers starting with plus char, how can I do that?
^[0-9]$
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I need to validate phone number in PHP. I have made following regex, but I also need to it to accept numbers starting with plus char, how can I do that?
^[0-9]$
The regex you provided in your question (
^[0-9]$) will only match a one digit phone number.At the very least you probably need to add the
+modifier to allow one or more digits:To add an optional
+at the beginning, you’ll need to escape it since+is a special character in regular expressions:And finally,
\dis shorthand for[0-9]so you could shorten the expression to