Fastest way to implode an associative array with keys

Question

I m looking for a fast way to turn an associative array in to a string  Typical structure would be like a URL query string but with customizable separators so I can use   amp amp   for xhtml links or   amp   otherwise   My first inclination is to use foreach but since my method could be called many times in one request I fear it might be too slow    lt  php  Amp    IsXhtml     amp amp       amp     Parameters   array  Action    gt   ShowList    Page    gt   2     QueryString       foreach   Parameters as  Key   gt   Value           QueryString     Amp    Key          Value    Is there a faster way

User · Answer

This is the most basic version I can think of   public function implode key  glue        pieces   array           keys   array keys  pieces       return implode  glue   keys

User · Answer

As an aside  I was in search to find the best way to implode an associative array but using my own seperators etc     So I did this using PHP s array walk   function to let me join an associative array into a list of parameters that could then be applied to a HTML tag         Create Params Array  p   Array  id   gt  blar   class   gt  myclass   onclick   gt  myJavascriptFunc          Join Params array walk  p  create function   amp  i  k    i    k    i          p string   implode  p          Now use  p string for your html tag   Obviously  you could stick that in your own function somehow but it gives you an idea of how you can join an associative array using your own method  Hope that helps someone

User · Answer

You can use http build query   to do that      Generates a URL-encoded query string from the associative  or indexed  array provided

User · Answer

If you re not concerned about the exact formatting however you do want something simple but without the line breaks of print r you can also use json encode  value  for a quick and simple formatted output   note it works well on other data types too    str   json encode  arr     output       id   123   name   Ice     id   234   name   Cake     id   345   name   Pie

User · Answer

As an aside  I was in search to find the best way to implode an associative array but using my own seperators etc     So I did this using PHP s array walk   function to let me join an associative array into a list of parameters that could then be applied to a HTML tag         Create Params Array  p   Array  id   gt  blar   class   gt  myclass   onclick   gt  myJavascriptFunc          Join Params array walk  p  create function   amp  i  k    i    k    i          p string   implode  p          Now use  p string for your html tag   Obviously  you could stick that in your own function somehow but it gives you an idea of how you can join an associative array using your own method  Hope that helps someone

User · Answer

One way is using print r array  true  and it will return string representation of array

User · Answer

If you re not concerned about the exact formatting however you do want something simple but without the line breaks of print r you can also use json encode  value  for a quick and simple formatted output   note it works well on other data types too    str   json encode  arr     output       id   123   name   Ice     id   234   name   Cake     id   345   name   Pie

User · Answer

A one-liner for creating string of HTML attributes  with quotes  from a simple array   attrString   str replace  quot   quot    quot   quot   str replace  quot  amp  quot    quot   quot   quot   str replace  quot   quot    quot    quot  quot   http build query  attrArray        quot   quot  quot    Example   attrArray   array  quot id quot       gt   quot email quot                        quot name quot     gt   quot email quot                       quot type quot     gt   quot email quot                       quot class quot    gt   quot active large quot     echo str replace  quot   quot    quot   quot   str replace  quot  amp  quot    quot   quot   quot   str replace  quot   quot    quot    quot  quot   http build query  attrArray        quot   quot  quot       Output     id  quot email quot  name  quot email quot  type  quot email quot  class  quot active large quot

User · Answer

echo implode      array keys  companies- gt toArray         companies- gt toArray   -- this is just in case if your  variable is an object  otherwise just pass  companies   That s it

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function array to attributes    array attributes           attributes str   NULL      foreach    array attributes as  attribute   gt   value                   attributes str       attribute    value                  return  attributes str      attributes   array       data-href      gt   http   example com        data-width     gt   300        data-height    gt   250        data-type      gt   cover       echo array to attributes  attributes

User · Answer

You can use http build query   to do that      Generates a URL-encoded query string from the associative  or indexed  array provided

User · Answer

This is my solution for example for an div data-attributes    lt     attributes   array       data-href      gt   http   example com        data-width     gt   300        data-height    gt   250        data-type      gt   cover        dataAttributes   array map function  value   key        return  key       value         array values  attributes   array keys  attributes      dataAttributes   implode       dataAttributes      gt    lt div class  image-box   lt     dataAttributes    gt   gt       lt img src  http   example com images best-of jpg  alt    gt   lt  div gt

User · Answer

You can use http build query   to do that      Generates a URL-encoded query string from the associative  or indexed  array provided

User · Answer

As an aside  I was in search to find the best way to implode an associative array but using my own seperators etc     So I did this using PHP s array walk   function to let me join an associative array into a list of parameters that could then be applied to a HTML tag         Create Params Array  p   Array  id   gt  blar   class   gt  myclass   onclick   gt  myJavascriptFunc          Join Params array walk  p  create function   amp  i  k    i    k    i          p string   implode  p          Now use  p string for your html tag   Obviously  you could stick that in your own function somehow but it gives you an idea of how you can join an associative array using your own method  Hope that helps someone

User · Answer

What about this shorter  more transparent  yet more intuitive with array walk   attributes   array     data-href      gt   http   example com      data-width     gt   300      data-height    gt   250      data-type      gt   cover        args       array walk       attributes       function   item   key  use   amp  args             args     key            item                       output   data-href  http   example com  data-width  300  data-height  250  data-type  cover

User · Answer

As an aside  I was in search to find the best way to implode an associative array but using my own seperators etc     So I did this using PHP s array walk   function to let me join an associative array into a list of parameters that could then be applied to a HTML tag         Create Params Array  p   Array  id   gt  blar   class   gt  myclass   onclick   gt  myJavascriptFunc          Join Params array walk  p  create function   amp  i  k    i    k    i          p string   implode  p          Now use  p string for your html tag   Obviously  you could stick that in your own function somehow but it gives you an idea of how you can join an associative array using your own method  Hope that helps someone

User · Answer

function array to attributes    array attributes           attributes str   NULL      foreach    array attributes as  attribute   gt   value                   attributes str       attribute    value                  return  attributes str      attributes   array       data-href      gt   http   example com        data-width     gt   300        data-height    gt   250        data-type      gt   cover       echo array to attributes  attributes

User · Answer

This is the most basic version I can think of   public function implode key  glue        pieces   array           keys   array keys  pieces       return implode  glue   keys

User · Answer

My solution    url string   http build query  your arr    res   urldecode  url string

User · Answer

This is my solution for example for an div data-attributes    lt     attributes   array       data-href      gt   http   example com        data-width     gt   300        data-height    gt   250        data-type      gt   cover        dataAttributes   array map function  value   key        return  key       value         array values  attributes   array keys  attributes      dataAttributes   implode       dataAttributes      gt    lt div class  image-box   lt     dataAttributes    gt   gt       lt img src  http   example com images best-of jpg  alt    gt   lt  div gt

User · Answer

One way is using print r array  true  and it will return string representation of array

User · Answer

echo implode      array keys  companies- gt toArray         companies- gt toArray   -- this is just in case if your  variable is an object  otherwise just pass  companies   That s it

User · Answer

You can use http build query   to do that      Generates a URL-encoded query string from the associative  or indexed  array provided

User · Answer

A one-liner for creating string of HTML attributes  with quotes  from a simple array   attrString   str replace  quot   quot    quot   quot   str replace  quot  amp  quot    quot   quot   quot   str replace  quot   quot    quot    quot  quot   http build query  attrArray        quot   quot  quot    Example   attrArray   array  quot id quot       gt   quot email quot                        quot name quot     gt   quot email quot                       quot type quot     gt   quot email quot                       quot class quot    gt   quot active large quot     echo str replace  quot   quot    quot   quot   str replace  quot  amp  quot    quot   quot   quot   str replace  quot   quot    quot    quot  quot   http build query  attrArray        quot   quot  quot       Output     id  quot email quot  name  quot email quot  type  quot email quot  class  quot active large quot

User · Answer

My solution    url string   http build query  your arr    res   urldecode  url string

User · Answer

What about this shorter  more transparent  yet more intuitive with array walk   attributes   array     data-href      gt   http   example com      data-width     gt   300      data-height    gt   250      data-type      gt   cover        args       array walk       attributes       function   item   key  use   amp  args             args     key            item                       output   data-href  http   example com  data-width  300  data-height  250  data-type  cover

[php] Fastest way to implode an associative array with keys

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