PHP Function Echo - The Swiss Army Knife of PHP Programming

The php function echo is like the Swiss army knife of PHP, it can be used to output text and HTML content in multiple ways. With a little knowledge of the various techniques and applications for this function, you will be able to seamlessly integrate PHP and HTML into web pages.

In this article, we will learn about php function echo and print statement. These two statements are very widely used in PHP programming. In this article, we will understand how these functions work and some of the best uses for them.

echo is a language construct not a function and therefore it can be used with or without parenthesis e.g. echo or echo(). As a language construct, echo accepts one or more string expressions separated by commas and it also accepts different data types but it will automatically convert these to strings. Hence, it is better to use string expressions rather than other data types when using this function.

Echo does not return a value, it simply outputs the content or data directly to the output stream for immediate display in the browser. This can be useful if you want to avoid the overhead of passing the result to another function for further processing.

This function can be combined with control structures such as loops and conditionals to create dynamic output based on different scenarios or iterations. This flexibility makes echo a very useful tool for developers.

Andreas Behr - CTO of DesertCoderz
You are a developer and looking for Shopware projects?
Apply Now!

echo example


        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->discard(...\func_get_args());
    }

    public function dump($key): \RedisCluster|false|string
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->dump(...\func_get_args());
    }

    public function echo($key_or_address, $msg): \RedisCluster|false|string
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->echo(...\func_get_args());
    }

    public function eval($script, $args = [], $num_keys = 0): mixed
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->eval(...\func_get_args());
    }

    public function eval_ro($script, $args = [], $num_keys = 0): mixed
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->eval_ro(...\func_get_args());
    }

    
$MPEGaudioLayerLookup         = self::MPEGaudioLayerArray();
            $MPEGaudioBitrateLookup       = self::MPEGaudioBitrateArray();
            $MPEGaudioFrequencyLookup     = self::MPEGaudioFrequencyArray();
            $MPEGaudioChannelModeLookup   = self::MPEGaudioChannelModeArray();
            $MPEGaudioModeExtensionLookup = self::MPEGaudioModeExtensionArray();
            $MPEGaudioEmphasisLookup      = self::MPEGaudioEmphasisArray();
        }

        if (isset($MPEGaudioVersionLookup[$rawarray['version']])) {
            $decodedVersion = $MPEGaudioVersionLookup[$rawarray['version']];
        } else {
            echo ($echoerrors ? "\n".'invalid Version ('.$rawarray['version'].')' : '');
            return false;
        }
        if (isset($MPEGaudioLayerLookup[$rawarray['layer']])) {
            $decodedLayer = $MPEGaudioLayerLookup[$rawarray['layer']];
        } else {
            echo ($echoerrors ? "\n".'invalid Layer ('.$rawarray['layer'].')' : '');
            return false;
        }
        if (!isset($MPEGaudioBitrateLookup[$decodedVersion][$decodedLayer][$rawarray['bitrate']])) {
            echo ($echoerrors ? "\n".'invalid Bitrate ('.$rawarray['bitrate'].')' : '');
            if ($rawarray['bitrate'] == 15) {
                

function link_target_meta_box( $link ) {

    ?> <fieldset><legend class="screen-reader-text"><span> <?php     /* translators: Hidden accessibility text. */
    _e( 'Target' );
    ?> </span></legend> <p><label for="link_target_blank" class="selectit"> <input id="link_target_blank" type="radio" name="link_target" value="_blank" <?php echo ( isset( $link->link_target ) && ( '_blank' === $link->link_target ) ? 'checked="checked"' : '' ); ?> /> <?php _e( '<code>_blank</code> &mdash; new window or tab.' ); ?></label></p> <p><label for="link_target_top" class="selectit"> <input id="link_target_top" type="radio" name="link_target" value="_top" <?php echo ( isset( $link->link_target ) && ( '_top' === $link->link_target ) ? 'checked="checked"' : '' ); ?> /> <?php _e( '<code>_top</code> &mdash; current window or tab, with no frames.' ); ?></label></p> <p><label for="link_target_none" class="selectit"> <input id="link_target_none" type="radio" name="link_target" value="" <?php echo ( isset( $link->link_target ) && ( '' === $link->link_target ) ? 'checked="checked"' : '' ); ?> /> <?php _e( '<code>_none</code> &mdash; same window or tab.' ); ?></label></p> </fieldset> <p><?php _e( 'Choose the target frame for your link.' ); ?></p> <?php }


        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->discard(...\func_get_args());
    }

    public function dump($key)
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->dump(...\func_get_args());
    }

    public function echo($msg)
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->echo(...\func_get_args());
    }

    public function eval($script, $args = null, $num_keys = null)
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->eval(...\func_get_args());
    }

    public function evalsha($script_sha, $args = null, $num_keys = null)
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->evalsha(...\func_get_args());
    }

    
/** * Fires after each site has been upgraded. * * @since MU (3.0.0) * * @param int $site_id The Site ID. */
            do_action( 'wpmu_upgrade_site', $site_id );
        }
        echo '</ul>';
        ?><p><?php _e( 'If your browser does not start loading the next page automatically, click this link:' ); ?> <a class="button" href="upgrade.php?action=upgrade&amp;n=<?php echo ( $n + 5 ); ?>"><?php _e( 'Next Sites' ); ?></a></p> <script type="text/javascript"> <!-- function nextpage() { location.href = "upgrade.php?action=upgrade&n=<?php echo ( $n + 5 ); ?>"; } setTimeout( "nextpage()", 250 ); //--> </script> <?php         break;
    case 'show':
    
<?php if ( count( $hierarchical_taxonomies ) && ! $bulk ) : ?> <fieldset class="inline-edit-col-center inline-edit-categories"> <div class="inline-edit-col"> <?php foreach ( $hierarchical_taxonomies as $taxonomy ) : ?> <span class="title inline-edit-categories-label"><?php echo esc_html( $taxonomy->labels->name ); ?></span> <input type="hidden" name="<?php echo ( 'category' === $taxonomy->name ) ? 'post_category[]' : 'tax_input[' . esc_attr( $taxonomy->name ) . '][]'; ?>" value="0" /> <ul class="cat-checklist <?php echo esc_attr( $taxonomy->name ); ?>-checklist"> <?php wp_terms_checklist( 0, array( 'taxonomy' => $taxonomy->name ) ); ?> </ul> <?php endforeach; // $hierarchical_taxonomies as $taxonomy ?> </div> </fieldset> <?php endif; // count( $hierarchical_taxonomies ) && ! $bulk ?> <fieldset class="inline-edit-col-right"> <div class="inline-edit-col">
<?php submit_button( __( 'Save' ), 'primary widget-control-save right', 'savewidget', false, array( 'id' => 'widget-' . esc_attr( $id_format ) . '-savewidget' ) ); ?> <span class="spinner"></span> </div> <br class="clear" /> </div> <?php echo $after_form; ?> </div> <div class="widget-description"> <?php     $widget_description = wp_widget_description( $widget_id );
    echo ( $widget_description ) ? "$widget_description\n" : "$widget_title\n";
    ?> </div> <?php     echo $sidebar_args['after_widget'];

    return $sidebar_args;
}

/** * @param string $classes * @return string */
<?php             /* translators: Hidden accessibility text. */
            _e( 'Admin Color Scheme' );
            ?> </span></legend> <?php         wp_nonce_field( 'save-color-scheme', 'color-nonce', false );
        foreach ( $_wp_admin_css_colors as $color => $color_info ) :

            ?> <div class="color-option <?php echo ( $color === $current_color ) ? 'selected' : ''; ?>"> <input name="admin_color" id="admin_color_<?php echo esc_attr( $color ); ?>" type="radio" value="<?php echo esc_attr( $color ); ?>" class="tog" <?php checked( $color, $current_color ); ?> /> <input type="hidden" class="css_url" value="<?php echo esc_url( $color_info->url ); ?>" /> <input type="hidden" class="icon_colors" value="<?php echo esc_attr( wp_json_encode( array( 'icons' => $color_info->icon_colors ) ) ); ?>" /> <label for="admin_color_<?php echo esc_attr( $color ); ?>"><?php echo esc_html( $color_info->name ); ?></label> <table class="color-palette"> <tr> <?php                     foreach ( $color_info->colors as $html_color ) {
                        ?> <td style="background-color: <?php echo esc_attr( $html_color ); ?>">&nbsp;</td> <?php

        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->discard(...\func_get_args());
    }

    public function dump($key): \Redis|string
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->dump(...\func_get_args());
    }

    public function echo($str): \Redis|false|string
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->echo(...\func_get_args());
    }

    public function eval($script, $args = [], $num_keys = 0): mixed
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->eval(...\func_get_args());
    }

    public function eval_ro($script_sha, $args = [], $num_keys = 0): mixed
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->eval_ro(...\func_get_args());
    }

    

    public function check_wp_version_check_exists() {
        if ( ! is_admin() || ! is_user_logged_in() || ! current_user_can( 'update_core' ) || ! isset( $_GET['health-check-test-wp_version_check'] ) ) {
            return;
        }

        echo ( has_filter( 'wp_version_check', 'wp_version_check' ) ? 'yes' : 'no' );

        die();
    }

    /** * Tests for WordPress version and outputs it. * * Gives various results depending on what kind of updates are available, if any, to encourage * the user to install security updates as a priority. * * @since 5.2.0 * * @return array The test result. */
$view_all_url    = '';
    $search_url      = '';

    if ( $nav_menu_selected_id ) {
        $most_recent_url = add_query_arg( $tab_name, 'most-recent', remove_query_arg( $removed_args ) );
        $view_all_url    = add_query_arg( $tab_name, 'all', remove_query_arg( $removed_args ) );
        $search_url      = add_query_arg( $tab_name, 'search', remove_query_arg( $removed_args ) );
    }
    ?> <div id="<?php echo esc_attr( "posttype-{$post_type_name}" ); ?>" class="posttypediv"> <ul id="<?php echo esc_attr( "posttype-{$post_type_name}-tabs" ); ?>" class="posttype-tabs add-menu-item-tabs"> <li <?php echo ( 'most-recent' === $current_tab ? ' class="tabs"' : '' ); ?>> <a class="nav-tab-link" data-type="<?php echo esc_attr( "tabs-panel-posttype-{$post_type_name}-most-recent" ); ?>" href="<?php echo esc_url( $most_recent_url . "#tabs-panel-posttype-{$post_type_name}-most-recent" ); ?>" > <?php _e( 'Most Recent' ); ?> </a> </li> <li <?php echo ( 'all' === $current_tab ? ' class="tabs"' : '' ); ?>> <a class="nav-tab-link" data-type="<?php echo esc_attr( "{$post_type_name}-all" ); ?>" href="<?php echo esc_url( $view_all_url . "#{$post_type_name}-all" ); ?>" >
if ( ! empty( $link_added ) ) {
    echo $link_added;
}

wp_nonce_field( $nonce_action );
wp_nonce_field( 'closedpostboxes', 'closedpostboxesnonce', false );
wp_nonce_field( 'meta-box-order', 'meta-box-order-nonce', false );
?> <div id="poststuff"> <div id="post-body" class="metabox-holder columns-<?php echo ( 1 === get_current_screen()->get_columns() ) ? '1' : '2'; ?>"> <div id="post-body-content"> <div id="namediv" class="postbox"> <h2 class="postbox-header"><label for="link_name"><?php _ex( 'Name', 'link name' ); ?></label></h2> <div class="inside"> <input type="text" name="link_name" size="30" maxlength="255" value="<?php echo esc_attr( $link->link_name ); ?>" id="link_name" /> <p><?php _e( 'Example: Nifty blogging software' ); ?></p> </div> </div> <div id="addressdiv" class="postbox"> <h2 class="postbox-header"><label for="link_url"><?php _e( 'Web Address' ); ?></label></h2> <div class="inside"> <input type="text" name="link_url" size="30" maxlength="255" class="code" value="
<?php checked( $instance['description'], true ); ?> id="<?php echo $this->get_field_id( 'description' ); ?>" name="<?php echo $this->get_field_name( 'description' ); ?>" /> <label for="<?php echo $this->get_field_id( 'description' ); ?>"><?php _e( 'Show Link Description' ); ?></label> <br /> <input class="checkbox" type="checkbox"<?php checked( $instance['rating'], true ); ?> id="<?php echo $this->get_field_id( 'rating' ); ?>" name="<?php echo $this->get_field_name( 'rating' ); ?>" /> <label for="<?php echo $this->get_field_id( 'rating' ); ?>"><?php _e( 'Show Link Rating' ); ?></label> </p> <p> <label for="<?php echo $this->get_field_id( 'limit' ); ?>"><?php _e( 'Number of links to show:' ); ?></label> <input id="<?php echo $this->get_field_id( 'limit' ); ?>" name="<?php echo $this->get_field_name( 'limit' ); ?>" type="text" value="<?php echo ( -1 !== $limit ) ? (int) $limit : ''; ?>" size="3" /> </p> <?php     }
}
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->migrate(...\func_get_args());
    }

    public function copy($src, $dst, $options = null): \Relay\Relay|false|int
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->copy(...\func_get_args());
    }

    public function echo($arg): \Relay\Relay|bool|string
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->echo(...\func_get_args());
    }

    public function ping($arg = null): \Relay\Relay|bool|string
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->ping(...\func_get_args());
    }

    public function idleTime(): \Relay\Relay|false|int
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->idleTime(...\func_get_args());
    }

    

        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->discard(...\func_get_args());
    }

    public function dump($key)
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->dump(...\func_get_args());
    }

    public function echo($msg)
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->echo(...\func_get_args());
    }

    public function eval($script, $args = null, $num_keys = null)
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->eval(...\func_get_args());
    }

    public function evalsha($script_sha, $args = null, $num_keys = null)
    {
        return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->evalsha(...\func_get_args());
    }

    
Home | Imprint | This part of the site doesn't use cookies.