php trim() 表单验证不为空实例
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2022-05-21 13:03:07
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php trim() 表单验证不为空实例,应该算是入门级的实例了,告诉你如何利用trim函数来删除空格然后判断用户提交的数据是否为空.
formerrorcheck.php
class="brush:php;">nickname is required."; $errors++; } if (!trim($firstname)) { echo "
first name is required."; $errors++; } if (!trim($lastname)) { echo "
last name is required."; $errors++; } if (!trim($email)) { echo "
primary email address is required."; $errors++; } if ($errors > 0) echo "
please use your browser's back button " . "to return to the form, and correct error(s)";
这是个简单的验证函数: