Jak zkontrolovat celé číslo v php

Příklady kódu

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0

php zkontrolujte, zda je vstup int

$a = 5; //returns true
$a = "5"; //returns false
$a = 5.3; //returns false
is_int($a);
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zkontrolujte, zda vstupní hodnota je celé číslo nebo ne v php

// to check the input integer validation we can use is_int() function
Syntax:
is_int(parameter);

$x = 10; //returns true
$x = "123"; //returns false
$x = 12.365; //returns false
$x = "ankur"; //returns false
is_int($x);
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php zkontrolujte, zda řetězec je celé číslo

<?php
$strings = array('1820.20', '10002', 'wsl!12');
foreach ($strings as $testcase) {
    if (ctype_digit($testcase)) {
        echo "The string $testcase consists of all digits.\n";
    } else {
        echo "The string $testcase does not consist of all digits.\n";
    }
}
?>

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