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PHP
Articles by Urmila Samariya
Page 6 of 11
PHP – bcpowmod() function
In PHP, bcpowmod() function is used to raise an arbitrary precision base number to another exponent number, reduced by a specified modulus. The bcpowmod() function accepts three arbitrary precision numbers as strings and it returns the base number raised to the exponent modulo number after scaling the result to the specified precision.SyntaxString bcpowmod($base, $exponent, $modulus, $scale)ParametersThe bcpowmod() function accepts four different parameters− $base, $exponent, $modulus and $scale.$base− It represents the left operand. It is a string type parameter.$exponent− It represents the right operand number which represents the exponent. It is a string type parameter.$modulus− The $modulus parameter accepts the operand ...
Read MorePHP – How to subtract one arbitrary precision number from another using bcsub() function?
In PHP, bcsub() math function is used to subtract one arbitrary precision number from another number. The bcsub() function takes two arbitrary precision numbers as strings and it gives the subtraction of the two numbers after scaling the result to an identified precision.Syntaxstring bcsub ($num_str1, $num_str2, $scaleVal)ParametersThe bcsub() math function accepts three different parameters $num_str1, $num_str2 and $scaleVal.$num_str1 − It represents the left operand and it is the string type parameter.$num_str2 − It represents the right operand and it is the string type parameter.$scaleVal − It is the optional integer type parameter that is used to set the number of digits after ...
Read MorePHP – How to compare two arbitrary precision numbers using bccomp() function?
In PHP, bccomp() function is used to compare two arbitrary numbers. The bccomp() function takes two arbitrary precision numbers as strings and gives the output as an integer after comparing the two numbers.Syntaxint bccomp($left_string1, $right_string1, $scaleval)ParametersThe bccomp() function accepts three different parameters− $left_string1, $right_string2 and $scaleval.$left_string1− It represents the left operand of one of two given numbers which we want to do the comparison and it is a string type parameter.$right_string2− It represents the right operand of one of two given numbers which we want to do the comparison and it is a string type parameter.$scaleval− It returns the number ...
Read MorePHP – How to divide two arbitrary precision numbers using bcdiv() function?
In PHP, bcdiv() math function is used to divide one arbitrary precision number from another number. The bcdiv() function takes two arbitrary precision numbers as strings and it gives the result as a division of two numbers after scaling the result to an identified precision. Or, we can say that the bcdiv() PHP function divides the dividend by the divisor.Syntaxstring bcdiv($num_string1, $num_string2, $scaleVal)ParametersThe bcmul() math function accepts three different parameters $num_string1, $num_string2 and $scaleVal.$num_string1 − It represents the dividend and it is the string type parameter.$num_string2 − It represents the divisor, it is the string type parameter.$scaleVal − It is the optional ...
Read MorePHP – How to get the modulus of an arbitrary precision number using bcmod() function?
In PHP, bcmod() math function is used to calculate the modulus of an arbitrary precision number. The bcmod() function takes an arbitrary precision number as strings and it gives the result as a modulus of numbers after scaling the result to an identified precision. Or, we can say that it gets the remainder after dividing string_num1 by string_num2. Unless the string_num2 is 0, the result has the same sign as string_num1.Syntaxbcmod(string_$num1, string_$num2, [, int $scale=0])Or, bcmod(string $dividend, string $divisor[, int $scale=0])Note− The above syntax will get the remainder of dividing $string_num1 by $string_num2. Unless string_num2 is 0, the result has ...
Read MorePHP – How to multiply two arbitrary precision numbers using bcmul() function?
In PHP, bcmul() math function is used to multiply one arbitrary precision number with another number. The bcmul() function takes two arbitrary precision numbers as strings and it gives the result as the multiplication of two numbers after scaling the result to an identified precision.Syntaxstring bcmul( $num_string1, $num_string2, $scaleVal)ParametersThe bcmul() math function accepts three different parameters $num_string1, $num_string2 and $scaleVal.$num_string1 - It represents the left operand and it is the string type parameter.$num_string2 - It represents the right operand, it is the string type parameter.$scaleVal - This is the optional integer type parameter that is used to set the number of digits ...
Read MorePHP – How to add two arbitrary precision numbers using bcadd() function?
In PHP, bcadd() math function is used to add two arbitrary precision numbers. The bcadd() function takes two random precision numbers as strings and it returns the addition of the two numbers after scaling the result to an identified precision.Syntaxstring bcadd ( $num_str1, $num_str2, $scaleVal)ParametersThe bcadd() math function accepts three different parameters, $num_str1, $num_str2 and $scaleVal.$num_str1 - It represents the left operand and it is the string type parameter.$num_str2 - It represents the right operand and it is the string type parameter.$scaleVal - It is the optional parameter that is used to set the number of digits after the decimal place in the ...
Read MoreHow to get an affine transformation matrix in PHP using imageaffinematrixget()?
imageaffinematrixget() is an inbuilt function in PHP that is used to get an affine transformation matrix. This function is often used in linear algebra and computer graphics.Syntaxarray imageaffinematrixget(int $type, mixed $options)Parametersimageaffinematrixget() accepts only two parameters: $type and $options.$type − The $type parameter specifies the integer to IMG_AFFINE constants.IMG_AFFINE_TRANSLATEIMG_AFFINE_SCALEIMG_AFFINE_ROTATEIMG_AFFINE_SHEAR_HORIZONTALIMG_AFFINE_SHEAR_VERTICAL$options − If type is IMG_AFFINE_TRANSLATE or IMG_AFFINE_SCALE, options has to be an array with keys x and y, both having float values. If type is IMG_AFFINE_ROTATE, IMG_AFFINE_SHEAR_HORIZONTAL or IMG_AFFINE_SHEAR_VERTICAL, options has to be a float specifying the angle.Return ValuesIt returns an affine transformation matrix, an array with keys from 0 to 5 ...
Read MoreHow to check antialias functions be used or not by using imageantialias() function in PHP?
imageantialias() is an inbuilt function in PHP that is used to check whether antialias function is used or not. It activates the fast drawing anti-aliased methods for lines and wired polygons. It works only with true-color images and it doesn't support alpha components.Syntaxbool imageantialias($image, $enabled)Parametersimageantialias() takes two parameters: $image and $enabled.$image − The $image parameter is a GdImage object and an image resource that is returned by the image creation function imagecreatetruecolor.$enabled − The $enabled parameter is used to check whether antialiasing is enabled or notReturn Valuesimageantialias() returns True on success and False on failure.Example 1Output
Read MoreHow to apply a 3×3 convolution matrix using imageconvolution() in PHP?
imageconvolution() is an inbuilt function in PHP that is used to apply a 3×3 convolution matrix, using the coefficient and offset in the image.Syntaxbool imageconvolution ( $image, $matrix, $div, $offset)Parametersimageconvolution() takes four parameters: $image, $matrix, $div, and $offset.$image − This parameter is used to create the size of the image by using an image creation function such as imagecreatetruecolor().$matrix − This parameter contains an array of 3×3 matrix of floats.$div − It is used for normalization.$offset − This parameter is used to set the color offset.Return Valuesimageconvolution() returns True on success and False on failure.Example 1OutputInput PNG image before using ...
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