php is variable a number
if(is_numeric($what_am_i)){
//true
}php is variable a number
if(is_numeric($what_am_i)){
//true
}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
}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.\n";
} else {
echo "The string $testcase does not consist of all digits.\n";
}
}
?>Copyright © 2021 Codeinu
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