PHP code to remove everything but numbers

Question

I m trying to remove everything from a string but just numbers  0-9     I thought this would work    echo preg replace    0-9       604-619-5135      But it echos  604-619-5135   What am I missing

User · Answer

a much more practical way for those who do not want to use regex    data   filter var  data  FILTER SANITIZE NUMBER INT     note  it works with phone numbers too

User · Answer

This is for future developers  you can also try this  Simple too  echo preg replace    D         604-619-5135

User · Answer

You would need to enclose the pattern in a delimiter - typically a slash     is used  Try this    echo preg replace     0-9        604-619-5135

User · Answer

Try this   preg replace     0-9          604-619-5135      preg replace uses PCREs which generally start and end with a

[php] PHP code to remove everything but numbers

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