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11-functions.php
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11-functions.php
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<!DOCTYPE html>
<html>
<head>
<title>functions</title>
</head>
<body>
<p>Code to say hello to Fred by default but recieve dynamic variable</p>
<?php
function sayHello($name = "Fred"){
return sprintf("Hi, there %s", $name);
}
echo sayHello();
echo sayHello("Nev");
?>
<hr />
<p>function to apply pre tags around print_r</p>
<?php
$arr = array('name' => 'nev', 'age' => '41', 'occupation' => 'web dev');
function prettyp($obj){
echo "<pre>";
print_r($obj);
echo "</pre>";
}
prettyp($arr);
?>
<hr />
<p>Array pluck </p>
<?php
$people = array(
array('name' => 'nev', 'age' => '41', 'occupation' => 'web dev'),
array('name' => 'clare', 'age' => '36', 'occupation' => 'events'),
array('name' => 'fred', 'age' => '0', 'occupation' => 'being cute')
);
function arrPluck($arr, $topluck = 'name'){
$ret = array();
foreach($arr as $item){
array_push($ret, $item[$topluck]);
}
return $ret;
}
var_dump(arrPluck($people, "age"));
?>
<hr />
<p>Array pluck using array map</p>
<?php
$people = array(
array('name' => 'nev', 'age' => '41', 'occupation' => 'web dev'),
array('name' => 'clare', 'age' => '36', 'occupation' => 'events'),
array('name' => 'fred', 'age' => '0', 'occupation' => 'being cute')
);
function arrPluckMap($arr, $topluck) {
return array_map(function($item) use($topluck) {
return $item[$topluck];
}, $arr);
}
var_dump(arrPluckMap($people,"occupation"));
?>
</body>
</html>