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  1. <?php
  2. $array1 = array('name' => '', 'email' => '', 'phone' => '');
  3. $array2 = array('name' => 'John', 'phone' => '55-555-555');
  4. $array2 = array_merge($array1, $array2);
  5. var_export($array2);
Success #stdin #stdout 0s 52488KB
stdin
Standard input is empty
stdout
array (
  'name' => 'John',
  'email' => '',
  'phone' => '55-555-555',
)