sprintf()
PHP sprintf() funksiyasi
❮ PHP string funksiyalari ma’lumotnomasi
Misol
Foiz (%) belgisini argument sifatida uzatilgan o‘zgaruvchi bilan almashtiring:
<?php
$number = 9;
$str = "Beijing";
$txt = sprintf("There are %u million bicycles in %s.",$number,$str);
echo $txt;
?>
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Ta’rif va qo‘llanilishi
sprintf() funksiyasi formatlangan stringni o‘zgaruvchiga yozadi.
arg1, arg2, ++ parametrlari asosiy stringdagi foiz (%) belgilari o‘rniga qo‘yiladi. Bu funksiya "bosqichma-bosqich" ishlaydi: birinchi % belgisi o‘rniga arg1, ikkinchi % belgisi o‘rniga arg2 qo‘yiladi va hokazo.
Eslatma: Agar % belgilari argumentlardan ko‘p bo‘lsa, joy egalaridan (placeholders) foydalanishingiz kerak. Joy egasi % belgisidan keyin qo‘yiladi va argument raqami hamda "\$" dan iborat bo‘ladi. Ikkinchi misolga qarang.
Maslahat: Tegishli funksiyalar: printf(), vprintf(), vsprintf(), fprintf() va vfprintf()
Sintaksis
sprintf(format,arg1,arg2,arg++)
Parametr qiymatlari
| Parametr | Tavsif |
|---|---|
| format | Majburiy. Stringni va undagi o‘zgaruvchilarni qanday formatlashni belgilaydi. Mumkin bo‘lgan format qiymatlari:
Qo‘shimcha format qiymatlari. Ular % va harf orasiga qo‘yiladi (masalan, %.2f):
Eslatma: Agar bir nechta qo‘shimcha format qiymatlari ishlatilsa, ular yuqoridagi tartibda bo‘lishi shart. |
| arg1 | Majburiy. Format stringidagi birinchi % belgisi o‘rniga qo‘yiladigan argument |
| arg2 | Ixtiyoriy. Format stringidagi ikkinchi % belgisi o‘rniga qo‘yiladigan argument |
| arg++ | Ixtiyoriy. Format stringidagi uchinchi, to‘rtinchi va hokazo % belgilari o‘rniga qo‘yiladigan argument |
Texnik tafsilotlar
| Qaytariladigan qiymat: | Formatlangan stringni qaytaradi |
|---|---|
| PHP versiyasi: | 4+ |
Ko‘proq misollar
Misol
%f format qiymatidan foydalanish:
<?php
$number = 123;
$txt = sprintf("%f",$number);
echo $txt;
?>
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Misol
Joy egalaridan (placeholders) foydalanish:
<?php
$number = 123;
$txt = sprintf("With 2 decimals: %1\$.2f
<br>With no decimals: %1\$u",$number);
echo $txt;
?>
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Misol
Barcha mumkin bo‘lgan format qiymatlarining namoyishi:
<?php
$num1 = 123456789;
$num2 = -123456789;
$char = 50; // The ASCII Character 50 is 2
// Note: The format value "%%" returns a percent sign
echo sprintf("%%b = %b",$num1)."<br>"; // Binary number
echo sprintf("%%c = %c",$char)."<br>"; // The ASCII Character
echo sprintf("%%d = %d",$num1)."<br>"; // Signed decimal number
echo sprintf("%%d = %d",$num2)."<br>"; // Signed decimal number
echo sprintf("%%e = %e",$num1)."<br>"; // Scientific notation (lowercase)
echo sprintf("%%E = %E",$num1)."<br>"; // Scientific notation (uppercase)
echo sprintf("%%u = %u",$num1)."<br>"; // Unsigned decimal number (positive)
echo sprintf("%%u = %u",$num2)."<br>"; // Unsigned decimal number (negative)
echo sprintf("%%f = %f",$num1)."<br>"; // Floating-point number (local settings aware)
echo sprintf("%%F = %F",$num1)."<br>"; // Floating-point number (not local sett aware)
echo sprintf("%%g = %g",$num1)."<br>"; // Shorter of %e and %f
echo sprintf("%%G = %G",$num1)."<br>"; // Shorter of %E and %f
echo sprintf("%%o = %o",$num1)."<br>"; // Octal number
echo sprintf("%%s = %s",$num1)."<br>"; // String
echo sprintf("%%x = %x",$num1)."<br>"; // Hexadecimal number (lowercase)
echo sprintf("%%X = %X",$num1)."<br>"; // Hexadecimal number (uppercase)
echo sprintf("%%+d = %+d",$num1)."<br>"; // Sign specifier (positive)
echo sprintf("%%+d = %+d",$num2)."<br>"; // Sign specifier (negative)
?>
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Misol
String spetsifikatorlarining namoyishi:
<?php
$str1 = "Hello";
$str2 = "Hello world!";
echo sprintf("[%s]",$str1)."<br>";
echo sprintf("[%8s]",$str1)."<br>";
echo sprintf("[%-8s]",$str1)."<br>";
echo sprintf("[%08s]",$str1)."<br>";
echo sprintf("[%'*8s]",$str1)."<br>";
echo sprintf("[%8.8s]",$str2)."<br>";
?>
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❮ PHP string funksiyalari ma’lumotnomasi
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