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<?php
$greeting = " hello world "; echo '->'.$greeting .'<-
'; echo strlen($greeting). '
'; $greeting = trim($greeting); echo '->'.$greeting .'<-
'; echo strlen($greeting). '
';
$greeting = " hello world "; echo '->'.$greeting .'<-<br>'; echo strlen($greeting). '<br>'; $greeting = trim($greeting); echo '->'.$greeting .'<-<br>'; echo strlen($greeting). '<br>';
Hello World!