Check If array is null or not in php

Question

I have an array like below which is generated by parsing a xml url   The array is   Array       Tags    gt  SimpleXMLElement Object                0    gt                The array name is  result  Now I want to check that if the array received like above I want to print a message of failure  But how to check this array in if condition

User · Accepted Answer

you can use   empty  result     to check if the main array is empty or not   But since you have a SimpleXMLElement object  you need to query the object if it is empty or not  See http   www php net manual en simplexmlelement count php  ex   if  empty  result      isset  result  Tags           return false    if      result  Tags   instanceof SimpleXMLElement         return false    return   result  Tags  - gt count

User · Answer

if array is look like this  null  or  null  null  or  null  null  null        you can use implode   implode is use for convert array to string   if implode null  arr   null           arr is empty  else          arr has some value rather than null

User · Answer

Right code of two ppl before         return true if values of array are empty    function is array empty  arr      if is array  arr          foreach  arr as  value            if  empty  value                return false                             return true

User · Answer

I understand what you want  You want to check every data of the array if all of it is empty or at least 1 is not empty  Empty array  Array       Tags     SimpleXMLElement Object                0                 Not an Empty array  Array       Tags     SimpleXMLElement Object                0      1      s                I hope I am right  You can use this function to check every data of an array if at least 1 of them has a value       return true if the array is not empty  return false if it is empty    function is array empty  arr     if is array  arr               foreach  arr  key   gt   value             if  empty  value      value    NULL     value                       return true                break   stop the process we have seen that at least 1 of the array has value so its not empty                           return false         if is array empty  result  Tags            array is not empty  else        array is empty     Hope that helps

User · Answer

This checks if the array is empty   if   empty  result           do stuf if array is not empty   else          do stuf if array is empty     This checks if the array is null or not  if  is null  result          do stuf if array is null   else         do stuf if array is not null

User · Answer

Corrected       return true if the array is not empty  return false if it is empty    function is array empty  arr     if is array  arr               foreach  arr as  key   gt   value             if  empty  value      value    NULL     value                       return true                break   stop the process we have seen that at least 1 of the array has value so its not empty                           return false

[php] Check If array is null or not in php

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