# darkify/1.5.1/src/Admin/Framework/functions/validate.php

Darkify – Dark Mode & Night Mode for Website & Admin (Dark Theme Included), version 1.5.1. 138 lines.

- Page: https://pluginprobe.com/plugins/darkify/1.5.1/code/src/Admin/Framework/functions/validate.php
- Raw: https://pluginprobe.com/plugins/darkify/1.5.1/raw/src/Admin/Framework/functions/validate.php
- Modified: 2026-05-04T09:54:44+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/darkify/1.5.1/code/src/Admin/Framework/functions/validate.php#L10-L20`.

```php
<?php if ( ! defined( 'ABSPATH' ) ) {
	die; } // Cannot access directly.
/**
 *
 * Email validate
 *
 * @since 1.0.0
 * @version 1.0.0
 */
if ( ! function_exists( 'darkify_validate_email' ) ) {
	function darkify_validate_email( $value ) {

		if ( ! filter_var( $value, FILTER_VALIDATE_EMAIL ) ) {
			return esc_html__( 'Please enter a valid email address.', 'darkify' );
		}
	}
}

/**
 *
 * Numeric validate
 *
 * @since 1.0.0
 * @version 1.0.0
 */
if ( ! function_exists( 'darkify_validate_numeric' ) ) {
	function darkify_validate_numeric( $value ) {

		if ( ! is_numeric( $value ) ) {
			return esc_html__( 'Please enter a valid number.', 'darkify' );
		}
	}
}

/**
 *
 * Required validate
 *
 * @since 1.0.0
 * @version 1.0.0
 */
if ( ! function_exists( 'darkify_validate_required' ) ) {
	function darkify_validate_required( $value ) {

		if ( empty( $value ) ) {
			return esc_html__( 'This field is required.', 'darkify' );
		}
	}
}

/**
 *
 * URL validate
 *
 * @since 1.0.0
 * @version 1.0.0
 */
if ( ! function_exists( 'darkify_validate_url' ) ) {
	function darkify_validate_url( $value ) {

		if ( ! filter_var( $value, FILTER_VALIDATE_URL ) ) {
			return esc_html__( 'Please enter a valid URL.', 'darkify' );
		}
	}
}

/**
 *
 * Email validate for Customizer
 *
 * @since 1.0.0
 * @version 1.0.0
 */
if ( ! function_exists( 'darkify_customize_validate_email' ) ) {
	function darkify_customize_validate_email( $validity, $value, $wp_customize ) {

		if ( ! sanitize_email( $value ) ) {
			$validity->add( 'required', esc_html__( 'Please enter a valid email address.', 'darkify' ) );
		}

		return $validity;
	}
}

/**
 *
 * Numeric validate for Customizer
 *
 * @since 1.0.0
 * @version 1.0.0
 */
if ( ! function_exists( 'darkify_customize_validate_numeric' ) ) {
	function darkify_customize_validate_numeric( $validity, $value, $wp_customize ) {

		if ( ! is_numeric( $value ) ) {
			$validity->add( 'required', esc_html__( 'Please enter a valid number.', 'darkify' ) );
		}

		return $validity;
	}
}

/**
 *
 * Required validate for Customizer
 *
 * @since 1.0.0
 * @version 1.0.0
 */
if ( ! function_exists( 'darkify_customize_validate_required' ) ) {
	function darkify_customize_validate_required( $validity, $value, $wp_customize ) {

		if ( empty( $value ) ) {
			$validity->add( 'required', esc_html__( 'This field is required.', 'darkify' ) );
		}

		return $validity;
	}
}

/**
 *
 * URL validate for Customizer
 *
 * @since 1.0.0
 * @version 1.0.0
 */
if ( ! function_exists( 'darkify_customize_validate_url' ) ) {
	function darkify_customize_validate_url( $validity, $value, $wp_customize ) {

		if ( ! filter_var( $value, FILTER_VALIDATE_URL ) ) {
			$validity->add( 'required', esc_html__( 'Please enter a valid URL.', 'darkify' ) );
		}

		return $validity;
	}
}

```