: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
** A base module for the following types of tags:
** [number] and [number*] # Number
** [range] and [range*] # Range
add_action( 'wpcf7_init', 'wpcf7_add_form_tag_number', 10, 0 );
function wpcf7_add_form_tag_number() {
wpcf7_add_form_tag( array( 'number', 'number*', 'range', 'range*' ),
'wpcf7_number_form_tag_handler',
function wpcf7_number_form_tag_handler( $tag ) {
if ( empty( $tag->name ) ) {
$validation_error = wpcf7_get_validation_error( $tag->name );
$class = wpcf7_form_controls_class( $tag->type );
$class .= ' wpcf7-validates-as-number';
if ( $validation_error ) {
$class .= ' wpcf7-not-valid';
$atts['class'] = $tag->get_class_option( $class );
$atts['id'] = $tag->get_id_option();
$atts['tabindex'] = $tag->get_option( 'tabindex', 'signed_int', true );
$atts['min'] = $tag->get_option( 'min', 'signed_num', true );
$atts['max'] = $tag->get_option( 'max', 'signed_num', true );
$atts['step'] = $tag->get_option( 'step', 'num', true );
$atts['readonly'] = $tag->has_option( 'readonly' );
$atts['autocomplete'] = $tag->get_option(
'autocomplete', '[-0-9a-zA-Z]+', true
if ( $tag->is_required() ) {
$atts['aria-required'] = 'true';
if ( $validation_error ) {
$atts['aria-invalid'] = 'true';
$atts['aria-describedby'] = wpcf7_get_validation_error_reference(
$atts['aria-invalid'] = 'false';
$value = (string) reset( $tag->values );
if ( $tag->has_option( 'placeholder' )
or $tag->has_option( 'watermark' ) ) {
$atts['placeholder'] = $value;
$value = $tag->get_default_option( $value );
$value = wpcf7_get_hangover( $tag->name, $value );
if ( 'range' === $tag->basetype ) {
if ( ! wpcf7_is_number( $atts['min'] ) ) {
if ( ! wpcf7_is_number( $atts['max'] ) ) {
if ( '' === $atts['value'] ) {
if ( $atts['min'] < $atts['max'] ) {
$atts['value'] = ( $atts['min'] + $atts['max'] ) / 2;
$atts['value'] = $atts['min'];
$atts['type'] = $tag->basetype;
$atts['name'] = $tag->name;
'<span class="wpcf7-form-control-wrap" data-name="%1$s"><input %2$s />%3$s</span>',
wpcf7_format_atts( $atts ),
'wpcf7_swv_create_schema',
'wpcf7_swv_add_number_rules',
function wpcf7_swv_add_number_rules( $schema, $contact_form ) {
$tags = $contact_form->scan_form_tags( array(
'basetype' => array( 'number', 'range' ),
foreach ( $tags as $tag ) {
if ( $tag->is_required() ) {
wpcf7_swv_create_rule( 'required', array(
'error' => wpcf7_get_message( 'invalid_required' ),
wpcf7_swv_create_rule( 'number', array(
'error' => wpcf7_get_message( 'invalid_number' ),
$min = $tag->get_option( 'min', 'signed_num', true );
$max = $tag->get_option( 'max', 'signed_num', true );
if ( 'range' === $tag->basetype ) {
if ( ! wpcf7_is_number( $min ) ) {
if ( ! wpcf7_is_number( $max ) ) {
if ( wpcf7_is_number( $min ) ) {
wpcf7_swv_create_rule( 'minnumber', array(
'error' => wpcf7_get_message( 'number_too_small' ),
if ( wpcf7_is_number( $max ) ) {
wpcf7_swv_create_rule( 'maxnumber', array(
'error' => wpcf7_get_message( 'number_too_large' ),
add_filter( 'wpcf7_messages', 'wpcf7_number_messages', 10, 1 );
function wpcf7_number_messages( $messages ) {
return array_merge( $messages, array(
'invalid_number' => array(
'description' => __( "Number format that the sender entered is invalid", 'contact-form-7' ),
'default' => __( "Please enter a number.", 'contact-form-7' ),
'number_too_small' => array(
'description' => __( "Number is smaller than minimum limit", 'contact-form-7' ),
'default' => __( "This field has a too small number.", 'contact-form-7' ),
'number_too_large' => array(
'description' => __( "Number is larger than maximum limit", 'contact-form-7' ),
'default' => __( "This field has a too large number.", 'contact-form-7' ),
add_action( 'wpcf7_admin_init', 'wpcf7_add_tag_generator_number', 18, 0 );
function wpcf7_add_tag_generator_number() {
$tag_generator = WPCF7_TagGenerator::get_instance();
$tag_generator->add( 'number', __( 'number', 'contact-form-7' ),
'wpcf7_tag_generator_number' );
function wpcf7_tag_generator_number( $contact_form, $args = '' ) {
$args = wp_parse_args( $args, array() );
$description = __( "Generate a form-tag for a field for numeric value input. For more details, see %s.", 'contact-form-7' );
$desc_link = wpcf7_link( __( 'https://contactform7.com/number-fields/', 'contact-form-7' ), __( 'Number fields', 'contact-form-7' ) );
<div class="control-box">
<legend><?php echo sprintf( esc_html( $description ), $desc_link ); ?></legend>
<table class="form-table">
<th scope="row"><?php echo esc_html( __( 'Field type', 'contact-form-7' ) ); ?></th>
<legend class="screen-reader-text"><?php echo esc_html( __( 'Field type', 'contact-form-7' ) ); ?></legend>
<option value="number" selected="selected"><?php echo esc_html( __( 'Spinbox', 'contact-form-7' ) ); ?></option>
<option value="range"><?php echo esc_html( __( 'Slider', 'contact-form-7' ) ); ?></option>
<label><input type="checkbox" name="required" /> <?php echo esc_html( __( 'Required field', 'contact-form-7' ) ); ?></label>
<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-name' ); ?>"><?php echo esc_html( __( 'Name', 'contact-form-7' ) ); ?></label></th>
<td><input type="text" name="name" class="tg-name oneline" id="<?php echo esc_attr( $args['content'] . '-name' ); ?>" /></td>
<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-values' ); ?>"><?php echo esc_html( __( 'Default value', 'contact-form-7' ) ); ?></label></th>
<td><input type="text" name="values" class="oneline" id="<?php echo esc_attr( $args['content'] . '-values' ); ?>" /><br />
<label><input type="checkbox" name="placeholder" class="option" /> <?php echo esc_html( __( 'Use this text as the placeholder of the field', 'contact-form-7' ) ); ?></label></td>
<th scope="row"><?php echo esc_html( __( 'Range', 'contact-form-7' ) ); ?></th>
<legend class="screen-reader-text"><?php echo esc_html( __( 'Range', 'contact-form-7' ) ); ?></legend>
<?php echo esc_html( __( 'Min', 'contact-form-7' ) ); ?>
<input type="number" name="min" class="numeric option" />
<?php echo esc_html( __( 'Max', 'contact-form-7' ) ); ?>
<input type="number" name="max" class="numeric option" />
<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-id' ); ?>"><?php echo esc_html( __( 'Id attribute', 'contact-form-7' ) ); ?></label></th>
<td><input type="text" name="id" class="idvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-id' ); ?>" /></td>
<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-class' ); ?>"><?php echo esc_html( __( 'Class attribute', 'contact-form-7' ) ); ?></label></th>
<td><input type="text" name="class" class="classvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-class' ); ?>" /></td>
<input type="text" name="<?php echo $type; ?>" class="tag code" readonly="readonly" onfocus="this.select()" />
<input type="button" class="button button-primary insert-tag" value="<?php echo esc_attr( __( 'Insert Tag', 'contact-form-7' ) ); ?>" />
<p class="description mail-tag"><label for="<?php echo esc_attr( $args['content'] . '-mailtag' ); ?>"><?php echo sprintf( esc_html( __( "To use the value input through this field in a mail field, you need to insert the corresponding mail-tag (%s) into the field on the Mail tab.", 'contact-form-7' ) ), '<strong><span class="mail-tag"></span></strong>' ); ?><input type="text" class="mail-tag code hidden" readonly="readonly" id="<?php echo esc_attr( $args['content'] . '-mailtag' ); ?>" /></label></p>