What Character Restrictions Apply to Input Element Names in Dynamic Scripts?

Name Attribute Character Restrictions for Input Elements

In dynamic script scenarios, it's crucial to consider the characters allowed in the name attribute of input elements. While the initial character must be a letter, additional restrictions apply:

• Whitespace: White space characters (e.g., spaces, tabs) are removed.
• Inner Whitespace: Whitespace between words is replaced with "_".
• Period: The period (.) character is replaced with "_".

Notably, not all characters in the input are submitted for name attributes. White space, inner white space, and periods are sanitized before submission. This behavior is consistent across major browsers, including Chrome, Firefox, and Internet Explorer.

Remember these restrictions when dynamically generating input elements to ensure proper handling and data collection in your PHP scripts.

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