How to search in an array with preg match

Question

How do I search in an array with preg match   Example    lt  php if  preg match     my n string n   i    array   file     my string    gt  name    this      match            Excelent        items      match 1     else         Ups  not found      gt

User · Answer

You can use array walk to apply your preg match function to each element of the array   http   us3 php net array walk

User · Answer

In this post I ll provide you with three different methods of doing what you ask for  I actually recommend using the last snippet  since it s easiest to comprehend as well as being quite neat in code   How do I see what elements in an array that matches my regular expression   There is a function dedicated for just this purpose  preg grep  It will take a regular expression as first parameter  and an array as the second   See the below example    haystack   array      say hello      hello stackoverflow      hello world      foo bar bas       matches    preg grep     hello   w   i    haystack    print r   matches     output  Array        1    gt  hello stackoverflow      2    gt  hello world     Documentation   PHP  preg grep - Manual     But I just want to get the value of the specified groups  How   array reduce with preg match can solve this issue in clean manner  see the snippet below    haystack   array      say hello      hello stackoverflow      hello world      foo bar bas      function  matcher   m   str      if  preg match     hello   w   i    str   matches        m      matches 1      return  m        N O T E      ------------------------------------------------------------------------------    you could specify   matcher  as an anonymous function directly to    array reduce though that kind of decreases readability and is therefore    not recommended  but it is possible    matches   array reduce   haystack    matcher   array       print r   matches     output  Array        0    gt  stackoverflow      1    gt  world     Documentation   PHP  array reduce - Manual PHP  preg match - Manual     Using array reduce seems tedious  isn t there another way   Yes  and this one is actually cleaner though it doesn t involve using any pre-existing array   or preg   function   Wrap it in a function if you are going to use this method more than once    matches   array      foreach   haystack as  str     if  preg match     hello   w   i    str   m        matches      m 1     Documentation   PHP  preg match - Manual

User · Answer

haystack   array       say hello       hello stackoverflow       hello world       foo bar bas       matches    preg grep   hello i    haystack    print r  matches     Output  Array        1    gt  say hello      2    gt  hello stackoverflow      3    gt  hello world

User · Answer

items   array    foreach   haystacks as  haystack        if  preg match  pattern   haystack   matches           items      matches 1

User · Answer

Use preg grep   array   preg grep         my n string n   i       array   file     my string    gt  name    this

[php] How to search in an array with preg_match?

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