How to convert records into numerical values ​​in php

In programming languages, a record (Record) refers to a set of data combinations with fields (Field) and values ​​(Value). When we need to calculate fields in these records, we usually need to convert them into numerical values. In the PHP language, there are many ways to convert records into numerical values. Two of the commonly used methods are introduced below.

Method 1: Use the intval() function to convert integer type

If the field in the record is integer data, we can use the intval() function to convert it to Integer value. The syntax structure of this function is as follows:

int intval ( mixed $var [, int $base = 10 ] )

Among them, $var is the data to be converted, $base represents the conversion base, and the default is decimal. In practical applications, $base generally uses the default value.

The following is a sample code:

<?php
$record = array(
    &#39;id&#39; => 1,
    'score' => '89',
    'age' => '23'
);

$score = intval($record['score']);

echo 'score: '.$score;
?>

In this code, the $record array represents a record, including three fields: id, score and age. We use the intval() function to convert $record['score'] to an integer value, and then the output result is as follows:

score: 89

Method 2: Use the floatval() function to convert floating point type

If the field in the record is floating point data, we can use the floatval() function to convert it to a floating point value. The syntax structure of this function is as follows:

float floatval ( mixed $var )

Among them, $var is the data that needs to be converted. Likewise, $var can be a variable or an array element.

The following is a sample code:

<?php
$record = array(
    &#39;id&#39; => 1,
    'score' => '89.5',
    'age' => '23'
);

$score = floatval($record['score']);

echo 'score: '.$score;
?>

This code is similar to the previous sample code, except that the floatval() function is used here to convert $record['score'] to floating point Type value. Then the output result is as follows:

score: 89.5

Summary

Records are a common data form in programs, and converting fields in records into numerical values ​​is also a common operation. In the PHP language, we can use the intval() function to convert integer data to integer values, and the floatval() function to convert floating-point data to floating-point values. These two functions are PHP's own functions and can be used easily.

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