1
For example when entering the client (in PHP) validate if age is above 18, before inserting, validate with a condition, and if you enter return an error, which in ajax, could be type:
success: function (data) {
alert('Sucesso');
},
error: function (data) {
alert('Ocorreu um erro, verifique a idade informada!');
}
0
The sucess ajax is for cases where ajax has completed its execution correctly, sending/receiving data from the server and the error is activated when any HTTP problem occurs(example, error 500).
If you want to do an age validation you can return a json in the backend with "error": "error message" or in case of success "success message", then you would perform the front check by parameter sucess ajax.
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The ajax error is for errors in the link, not for "status". Sends a variable to PH via
dataof that callbacksuccessand depending on that date alerts the correct content.– Sergio