PHP implémente la fonction de détection des caractères GSM dans les messages texte des téléphones portables

Cet article présente principalement la méthode permettant de vérifier si une chaîne contient des caractères GSM à 7 chiffres en PHP. Il peut réaliser la fonction de détection des caractères GSM dans les messages texte du téléphone portable. Il est d'une grande valeur pratique. à cela

L'exemple de cet article décrit comment PHP vérifie si une chaîne contient des caractères GSM à 7 chiffres. L'analyse spécifique est la suivante :

Le code suivant vérifie si une chaîne contient des caractères GSM de 7 bits. C’est très utile pour les personnes travaillant sur les plateformes SMS.

<?php
function check_gsm($str)
{
  $arr = array(
"0x00", "0x01", "0x02", "0x03", "0x04", 
"0x05","0x06","0x07","0x08","0x09",
"0x0A","0x0B","0x0C","0x0D","0x0E","0x0F","0x10","0x11","0x12","0x13",
"0x14","0x15","0x16","0x17","0x18","0x19","0x1A","0x1B","0x1B0A",
"0x1B14","0x1B28","0x1B29","0x1B2F","0x1B3C","0x1B3D","0x1B3E",
"0x1B40","0x1B65","0x1C","0x1D","0x1E","0x1F","0x20","0x21","0x22",
"0x23","0x24","0x25","0x26","0x27","0x28","0x29","0x2A","0x2B","0x2C",
"0x2D","0x2E","0x2F","0x30","0x31","0x32","0x33","0x34","0x35","0x36",
"0x37","0x38","0x39","0x3A","0x3B","0x3C","0x3D","0x3E","0x3F","0x40",
"0x41","0x42","0x43","0x44","0x45","0x46","0x47","0x48","0x49","0x4A",
"0x4B","0x4C","0x4D","0x4E","0x4F","0x50","0x51","0x52","0x53","0x54",
"0x55","0x56","0x57","0x58","0x59","0x5A","0x5B","0x5C","0x5D","0x5E",
"0x5F","0x60","0x61","0x62","0x63","0x64","0x65","0x66","0x67","0x68",
"0x69","0x6A","0x6B","0x6C","0x6D","0x6E","0x6F","0x70","0x71","0x72",
"0x73","0x74","0x75","0x76","0x77","0x78","0x79","0x7A","0x7B","0x7C",
"0x7D","0x7E","0x7F");
  $strl = strlen($str);
  for ($i = 0;$i < $strl; $i++)
  {
    $char = &#39;0x&#39; . bin2hex(substr($str,$i,1));
    $pos = in_array($char,$arr);
    if ($pos == 1)
    {
      $j++;
    }
  }
  if ($j < $strl)
  {
    return false;
  }
  else
  {
    return true;
  }
}
?>

Résumé : Ce qui précède est l'intégralité du contenu de cet article, j'espère qu'il sera utile à l'étude de chacun.

Recommandations associées :

Fonction PHP consistant à remplacer la partie centrale d'une chaîne par des points de suspension

Techniques d'implémentation de la fonction de hachage personnalisée PHP

php implémente un code de vérification SMS pour vérifier le numéro de téléphone mobile et l'IMEI

Ce qui précède est le contenu détaillé de. pour plus d'informations, suivez d'autres articles connexes sur le site Web de PHP en chinois!