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源代码
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>PHP array_filter() 实例 - 自学教程(runoops.com)</title> </head> <body> <?php $entry = [ 0 => 'foo', 1 => false, 2 => -1, 3 => null, 4 => '', 5 => '0', 6 => 0, ]; print_r(array_filter($entry)); ?> </body> </html>
运行结果: