convert string to float in php code example

Example 1: convert a value to a float in php

$stringVal = "12.06";
$stringConvertedToFloat = floatval( $stringVal );
// The floatval function will return the argument converted
// to a float value if the value can be converted.
// IF the value cannot be converted these are the values that will be
// returned:
// Empty Array: returns 0. eg: floatval([]);
// Non-Empty Array: returns 1. eg: floatval(["ab", "12"])
// String with a non-numeric value as the left most character: returns 0. eg: floatval("ab12")
// String with one or more numeric values as the left most characters: returns those characters as a float. eg: floatval("12ab1") will return 12.
// Oh the joys of php

Example 2: string to float php

$floatValue = floatval("1.0");

Example 3: number format to float php

$num = '1,200,998.255';

########## FOR FLOAT VALUES ###########################

echo filter_var($num, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);

#output  : 1200998.255

########## FOR INTEGER VALUES ###########################

echo filter_var($num, FILTER_SANITIZE_NUMBER_INT);

#output  : 1200998

Example 4: Convert String to Float in PHP

phpCopy<?php
$mystring = "0.5674";
echo("This float number is of string data type ");
echo($mystring);
echo("\n");
$myfloat = floatval($mystring);
echo("Now, this float number is of float data type ");
echo($myfloat);
?>

Example 5: Convert String to Float in PHP

phpCopy<?php
$mystring = "0.5674";
echo("This float number is of string data type ");
echo($mystring);
echo("\n");
$myfloat = number_format($mystring, 4);
echo("Now, this float number is of float data type ");
echo($myfloat);
?>

Example 6: Convert String to Float in PHP

phpCopy<?php
$mystring = "0.5674";
echo("This float number is of string data type ");
echo($mystring);
echo("\n");
$myfloat = (float) $mystring;
echo("Now, this float number is of float data type ");
echo($myfloat);
?>