Código HTML:
<?php
$sin_amonestacion1 = 'url1';
$sin_amonestacion2 = 'url2';
$sin_amonestacion3 = 'url3';
$sin_amonestacion4 = 'url4';
$ch = curl_init($sin_amonestacion1);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data1= curl_exec($ch);
curl_close($ch);
$ch = curl_init($sin_amonestacion2);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data2= curl_exec($ch);
curl_close($ch);
$ch = curl_init($sin_amonestacion3);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data3= curl_exec($ch);
curl_close($ch);
$ch = curl_init($sin_amonestacion4);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data4= curl_exec($ch);
curl_close($ch);
$resultado_no_amonestacion=$data1 . $data2 . $data3 . $data4;
echo $resultado_no_amonestacion;
?>