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JDS_PHP#2
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<?php | |
class Pipeline | |
{ | |
public static function make_pipeline(...$funcs) | |
{ | |
return function($arg) use ($funcs) | |
{ | |
# calling each function in the make_pipeline in order | |
foreach($funcs as $function) { | |
# Store the triggering value in first function of args | |
if(!isset($value)) | |
$value = $function($arg); | |
# Subsequent executions will now use the stored value and reset it simultaneously | |
else | |
$value = $function($value); | |
} | |
# Send back this value | |
return $value; | |
}; | |
} | |
} | |
$fun = Pipeline::make_pipeline(function($x) { return $x * 3; }, function($x) { return $x + 1; }, | |
function($x) { return $x / 2; }); | |
echo $fun(3); # should print 5 |
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