Php array function array_walk usage example, array array_pai_php tutorial

Php array function array_walk usage example, array array_walk. Php array function array_walk usage example. array array_walk this article describes the usage of php array function array_walk. For your reference, see $ wordsarray (l php array function array_walk usage example, array array_walk

This article describes how to use the php array function array_walk. We will share this with you for your reference. The details are as follows:

$ Words = array ("l" => "lemon", "o" => "orange", "B" => "banana ", "a" => "apple"); // defines a callback function and outputs the function words_print ($ value, $ key, $ prefix) {echo "$ prefix: $ key => $ value
\ N ";}// define a callback function to directly change the value of the element function words_alter (& $ value, $ key) {$ value = ucfirst ($ value ); $ key = strtoupper (key);} // array_walk ($ words, 'Words _ print ', 'Word') of the output element '); // change the value of the element array_walk ($ words, 'Words _ alter '); echo"
";print_r($words);echo "
";

Class internal call example:

class ArrayWalk {  /**  * properties:  */  var $body_chunk = array('0'=>'Dewen', '1'=>'PHP', 2=>'Linux');  /////////////////////////////////////////////////  // VARIABLE METHODS  /////////////////////////////////////////////////  function ArrayWalk (){  }  function func_1(){  print_r($this->body_chunk);  array_walk ($this->body_chunk, array($this,'SpellStrToLower'));  print_r($this->body_chunk);  }  function SpellStrToLower (&$str){    $str = strtolower ($str);  }}$obj = new ArrayWalk();echo '
';$obj->func_1();echo '
';

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