How can I remove a key and its value from an associative array

Question

Given an associative array   array  key1    gt   value1    key2    gt   value2          How would I go about removing a certain key-value pair  given the key

User · Answer

You may need two or more loops depending on your array    arr  key1   key2   key3   value1         etc  foreach   arr as  key1   gt   values      foreach   key1 as  key2   gt   value      unset  arr  key1   key2

User · Answer

Use unset     unset  array  key1

User · Answer

Use this function to remove specific arrays of keys without modifying the original array   function array except  array   keys      return array diff key  array  array flip  array   keys            First param pass all array  second param set array of keys to remove   For example    array          color    gt   red         age    gt   130         fixed    gt  true     output   array except  array    color    fixed         output now contains   age    gt   130

User · Answer

You can use unset   unset  array  key-here       Example    array   array  key1    gt   value1    key2    gt   value2    print r  array    unset  array  key1     print r  array    unset  array  key2     print r  array     Output   Array        key1    gt  value1      key2    gt  value2   Array        key2    gt  value2   Array

User · Answer

Consider this array    arr   array  key1    gt   value1    key2    gt   value2    key3    gt   value3    key4    gt   value4       To remove an element using the array key      To unset an element from array using Key  unset  arr  key2     var dump  arr      output  array 3      key1    gt  string 6   value1    key3    gt  string 6   value3    key4    gt  string 6   value4     To remove element by value      remove an element by value   arr   array diff  arr    value1     var dump  arr      output  array 2      key3    gt  string 6   value3    key4    gt  string 6   value4        read more about array diff  http   php net manual en function array-diff php   To remove an element by using index   array splice  arr  1  1   var dump  arr      array 1      key3    gt  string 6   value3        read more about array splice  http   php net manual en function array-splice php

User · Answer

Using unset   unset  array  key1

[php] How can I remove a key and its value from an associative array?

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