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form error


mohammad2232
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3 options

1) PHP validation, this should be always done, even if using below options, as JavaScript can be disabled, and html amended.

2) html, add 'required' attribute to inputs.

3) JavaScript validation, use this method to validate inputs before submitting, this is a more user friendly option, but JS can be disabled, allowing invalid input content through, that is why PHP validation is always necessary.

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