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check input value is integer or not in 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);
Comment

php check if variable is int

// Check if variable is int
$id = "1";

if(!intval($id)){
  throw new Exception("Not Int", 404);
}
else{
	// this variable is int
}
Comment

php check if input is int

$a = 5; //returns true
$a = "5"; //returns false
$a = 5.3; //returns false
is_int($a);
Comment

php check string is int

<?php
// combination of is_int and type coercion
// FALSE: 0, '0', null, ' 234.6',  234.6
// TRUE: 34185, ' 34185', '234', 2345
$mediaID =  34185;
if( is_int( $mediaID + 0) && ( $mediaID + 0 ) > 0 ){
    echo 'isint'.$mediaID;
}else{
    echo 'isNOTValidIDint';
}
?>
Comment

php is int

is_int(mixed $value): bool
Comment

php is_int

<?php
$values = array(23, "23", 23.5, "23.5", null, true, false);
foreach ($values as $value) {
    echo "is_int(";
    var_export($value);
    echo ") = ";
    var_dump(is_int($value));
}
?>
  
/* Output
is_int(23) = bool(true)
is_int('23') = bool(false)
is_int(23.5) = bool(false)
is_int('23.5') = bool(false)
is_int(NULL) = bool(false)
is_int(true) = bool(false)
is_int(false) = bool(false)
*/
 
Comment

php check if string is integer

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

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