Attributes of input in PHP

This article mainly introduces the hidden, read-only and restricted attributes of input. By changing the attributes of input, the input box can be limited in length and cannot be modified. Friends in need can refer to it. I hope it can help everyone.

Hide

<input type="hidden">

Readonly

<input type="text" readonly>

Invalid

&lt ;input type="text" disabled>

Limitations

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<input onkeydown="if(event.keyCode==13)event.keyCode=9">

Shield input method

<input type="text" name="url" style="ime-mode:disabled" onkeydown="if(event.keyCode==13)event.keyCode=9">

disabled and readonly.

<INPUT type=”text” name=”username” value=”james” disabled> 
Readonly使用： 
<INPUT type=”text” name=”partNumber” value=”1500″ readonly>

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