Strncasecmp funksiyasi

strncasecmp funksiyasi ikki satrning ko'rsatilgan birinchi n belgilarini registrni hisobga olmasdan taqqoslaydi. Agar pastki satrlar teng bo'lsa 0 ni, birinchi satr ikkinchisidan kichik bo'lsa manfiy sonni, va birinchi satr katta bo'lsa musbat sonni qaytaradi.

Sintaksis

phpstrncasecmp(string $str1, string $str2, int $length): int

Misol

Birinchi 4 belgilarni registrni hisobga olmasdan taqqoslash:

php<?php
  $res = strncasecmp("Hello", "HELP me", 4);
  echo $res;
?>

Kod bajarish natijasi:

php0

Misol

Registr farqi bilan taqqoslash:

php<?php
  $res = strncasecmp("apple", "APRICOT", 3);
  echo $res;
?>

Kod bajarish natijasi (manfiy son, chunki 'p' < 'R'):

php-8

Misol

Registrni hisobga olmasdan prefiksni tekshirish:

php<?php
  $header = "Content-Type: application/json";
  if (strncasecmp($header, "content-type:", 12) === 0) {
    echo '+++';
  }
?>

Kod bajarish natijasi:

php'+++'

Shuningdek qarang