Online PHP editor | refs for Dd70P

<?php $input = array( ' hello ','whsdf ',' lve you',' '); $input2 = array( ' hello ','whsdf ',' lve you',' '); $input3 = array( ' hello ','whsdf ',' lve you',' '); $time_start = microtime(true); $input = array_map('trim',$input); $time_end = microtime(true); $time = $time_end - $time_start; echo "Did array_map in $time seconds "; foreach($input as $in){ echo "'$in': ".strlen($in)." "; } //////////////////////////////////////////////// $time_start = microtime(true); array_walk($input2,'trim'); $time_end = microtime(true); $time = $time_end - $time_start; echo "Did array_walk in $time seconds "; foreach($input2 as $in){ echo "'$in': ".strlen($in)." "; } //////////////////////////////////////////////// $time_start = microtime(true); foreach($input3 as $in){ $in = trim($in); } $time_end = microtime(true); $time = $time_end - $time_start; echo "Did foreach in $time seconds "; foreach($input3 as $in){ echo "'$in': ".strlen($in)." "; }