Php strtr
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PHP function strtr
This function translates characters or replace substrings.
Syntax strtr
- string: string to be translated or replaced.
- from: what characters within the string to be changed or replaced
- to: the characters to change into
- array: this the array contains key and value to be changed or replaced. The key is the from and the value is the to.
key=>value equal from=>to.
strtr(string, from, to); OR strtr(string, array);
Example 1
- Replace G=>h
- Replace h=>x
<?php
echo strtr("Girl of the world!", "Gw", "hx");
?>
Output
hirl of the xorld!
Example 2
<?php
<?php
$str = "My friends are all welcome to my new place";
$arry = array('My' => 'Your',
'friends' => 'teachers',
'new' => 'old',
'my'=>'your'
);
$new_str = strtr($str,$arry);
echo $new_str;
?>
Output
Your teachers are all welcome to your old place
Example 3: Using strstr to make the guessing word game
- Try to replace in each character with "_" so that user can make a guess game.
- This game will display different missing word each time you refresh the page.
<?php
$word_list = array(
'girl',
'body',
'fish',
'dog',
'lovely',
'wish'
);
$word_select = array();
foreach ($word_list as $k) {
$random_indx = rand(1, 3);
$tmp_str = substr($k, $random_indx);
$word_select[] = strtr($k, $tmp_str, '_');
}
print_r($word_select);
?>
Output
Array ( [0] => g_rl [1] => bo_y [2] => fis_ [3] => do_ [4] => lo_ely [5] => wi_h )
