Notifications with PHP

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Notifications with PHP

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#1 by (1 votes)

7

Hi, guys, how do I get an alert when the https request does not find the identification in a database by using an api rest? What I am doing is looking for an ID when it is found, it shows me on a table that information also a pdf, but when it is not found it shows me the table and the empty pdf (I tested by console returns a null) what I want is to block that table and the pdf and only show me an alert "Identification does not exist". Thanks for your reply.

PHP code:

if (isset($_POST['submit'])) {
$ruc=$_POST['ruc'];


$url = 'https://......'.$ruc;
$json = file_get_contents($url);
$datos = json_decode($json,true);

$rucs=$datos["NUMERO_RUC"];
echo'<br>';
echo'<div class="c">';
    echo '<table class="table">'
    .'<tr style="text-align:center">'
    .'<td style="background:#EEE"><b>Número de ruc</b></td>'
    .'<td style="background:#EEE"><b>PDF</b></td>'
echo '<tr style="text-align: center">'
        .'<td>' . $rucs. '</td>'
        .'<td>' . '<a href="pdf/pdf.php">PDF</a>'. '</td>'
echo '</table>';
echo'</div>';
}

php

asked by Andres 08.10.2018 в 02:07

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1 answer

Determine the closest marker. Google maps Resize iframe based on its content

score 1 · Answer 1

You can evaluate if there exists $ rucs, if the table exists, if it does not exist write the javascript code that sends an alert (), or whatever you want, like this:

if (isset($_POST['submit'])) {
$ruc=$_POST['ruc'];


$url = 'https://......'.$ruc;
$json = file_get_contents($url);
$datos = json_decode($json,true);

$rucs=$datos["NUMERO_RUC"];

if(!$rucs){
  echo '<script>alert("No se ha encontrado el identificador")</script>';
}else{
  echo'<br>';
  echo'<div class="c">';
  echo '<table class="table">'
    .'<tr style="text-align:center">'
    .'<td style="background:#EEE"><b>Número de ruc</b></td>'
    .'<td style="background:#EEE"><b>PDF</b></td>'
  echo '<tr style="text-align: center">'
    .'<td>' . $rucs. '</td>'
    .'<td>' . '<a href="pdf/pdf.php">PDF</a>'. '</td>'
  echo '</table>';
  echo'</div>';
  }
}