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strcmp

(PHP 4, PHP 5, PHP 7, PHP 8)

strcmp — Binary safe string comparison

Опис

strcmp(string $string1, string $string2): int

Note that this comparison is case sensitive. For case-insensitive comparison, see strcasecmp().

Note that this comparison is not locale aware. For locale aware comparison see strcoll() or Collator::compare()

Параметри

string1

The first string.

string2

The second string.

Значення, що повертаються

Returns a value less than 0 if string1 is less than string2; a value greater than 0 if string1 is greater than string2, and 0 if they are equal. No particular meaning can be reliably inferred from the value aside from its sign.

Журнал змін

Версія Опис
8.2.0 Тепер ця функція повертає -1 або 1, а не від'ємне або додатнє число, як раніше.

Приклади

Приклад #1 strcmp() example

<?php
$var1 = "Hello";
$var2 = "hello";
if (strcmp($var1, $var2) !== 0) {
echo '$var1 is not equal to $var2 in a case sensitive string comparison';
}
?>

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