diff --git src/wp-includes/class.wp-scripts.php src/wp-includes/class.wp-scripts.php
index 52c6824..6278c5a 100644
--- src/wp-includes/class.wp-scripts.php
+++ src/wp-includes/class.wp-scripts.php
@@ -145,6 +145,9 @@ class WP_Scripts extends WP_Dependencies {
* @param string $handle Script handle.
*/
$srce = apply_filters( 'script_loader_src', $src, $handle );
+
+ $this->print_code .= $this->print_inline_script( $handle, 'before', false );
+
if ( $this->in_default_dir( $srce ) && ! $conditional ) {
$this->print_code .= $this->print_extra_script( $handle, false );
$this->concat .= "$handle,";
@@ -154,6 +157,8 @@ class WP_Scripts extends WP_Dependencies {
$this->ext_handles .= "$handle,";
$this->ext_version .= "$handle$ver";
}
+
+ $this->print_code .= $this->print_inline_script( $handle, 'after', false );
}
$has_conditional_data = $conditional && $this->get_data( $handle, 'data' );
@@ -194,10 +199,77 @@ class WP_Scripts extends WP_Dependencies {
*/
$tag = apply_filters( 'script_loader_tag', $tag, $handle, $src );
+ $before_handle = $this->print_inline_script( $handle, 'before', false );
+ $after_handle = $this->print_inline_script( $handle, 'after', false );
+
if ( $this->do_concat ) {
+
+ if ( $before_handle ) {
+ $this->print_html .= sprintf( "\n", esc_attr( $handle ), $before_handle );
+ }
+
$this->print_html .= $tag;
+
+ if ( $after_handle ) {
+ $this->print_html .= sprintf( "\n", esc_attr( $handle ), $after_handle );
+ }
} else {
+ $this->print_inline_script( $handle, 'before' );
echo $tag;
+ $this->print_inline_script( $handle, 'after' );
+ }
+
+ return true;
+ }
+
+ /**
+ * Add extra code to a registered script.
+ *
+ * @since 4.5.0
+ *
+ * @param string $handle Name of the script to add the inline script to. Must be lowercase.
+ * @param string $data String containing the javascript to be added.
+ * @param string $position Optional. Whether to add the inline script before the handle
+ * or after. Default 'after'.
+ *
+ * @return bool True on success, false on failure.
+ */
+ public function add_inline_script( $handle, $data, $position = 'after' ) {
+ if ( ! $data ) {
+ return false;
+ }
+
+ if ( 'after' !== $position ) {
+ $position = 'before';
+ }
+
+ $script = (array) $this->get_data( $handle, $position );
+ $script[] = $data;
+
+ return $this->add_data( $handle, $position, $script );
+ }
+
+ /**
+ * Print inline scripts registered for a specific handle.
+ *
+ * @param string $handle Name of the script to add the inline script to. Must be lowercase.
+ * @param string $position Optional. Whether to add the inline script before the handle
+ * or after. Default 'after'.
+ * @param bool $echo Optional. Whether to echo the script instead of just returning it.
+ * Default true.
+ * @return bool True on success, false otherwise.
+ */
+ public function print_inline_script( $handle, $position = 'after', $echo = true ) {
+ $output = $this->get_data( $handle, $position );
+
+ if ( empty( $output ) ) {
+ return false;
+ }
+
+ $output = trim( implode( "\n", $output ), "\n" );
+
+ if ( $echo ) {
+ printf( "\n", esc_attr( $handle ), $position, $output );
}
return true;
diff --git src/wp-includes/functions.wp-scripts.php src/wp-includes/functions.wp-scripts.php
index a3ac7e6..4d6b732 100644
--- src/wp-includes/functions.wp-scripts.php
+++ src/wp-includes/functions.wp-scripts.php
@@ -86,6 +86,36 @@ function wp_print_scripts( $handles = false ) {
}
/**
+ * Add extra code to a registered script.
+ *
+ * Code will only be added if the script in already in the queue.
+ * Accepts a string $data containing the Code. If two or more code blocks
+ * are added to the same script $handle, they will be printed in the order
+ * they were added, i.e. the latter added code can redeclare the previous.
+ *
+ * @since 4.5.0
+ *
+ * @see WP_Scripts::add_inline_script()
+ *
+ * @param string $handle Name of the script to add the inline script to. Must be lowercase.
+ * @param string $data String containing the javascript to be added.
+ * @param string $position Optional. Whether to add the inline script before the handle
+ * or after. Default 'after'.
+ * @return bool True on success, false on failure.
+ */
+function wp_add_inline_script( $handle, $data, $position = 'after' ) {
+ _wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
+
+ if ( false !== stripos( $data, '' ) ) {
+ _doing_it_wrong( __FUNCTION__, __( 'Do not pass script tags to wp_add_inline_script().' ), '4.1.3' );
+ $data = trim( preg_replace( '#]*>(.*)#is', '$1', $data ) );
+ }
+
+ return wp_scripts()->add_inline_script( $handle, $data, $position );
+}
+
+
+/**
* Register a new script.
*
* Registers a script to be linked later using the wp_enqueue_script() function.
diff --git tests/phpunit/tests/dependencies/scripts.php tests/phpunit/tests/dependencies/scripts.php
index 73680df..0fec6a3 100644
--- tests/phpunit/tests/dependencies/scripts.php
+++ tests/phpunit/tests/dependencies/scripts.php
@@ -166,4 +166,78 @@ class Tests_Dependencies_Scripts extends WP_UnitTestCase {
$this->assertFalse( wp_register_script( 'duplicate-handler', 'http://example.com' ) );
}
+ /**
+ * @ticket 14853
+ */
+ function test_wp_add_inline_script_returns_bool() {
+ $this->assertFalse( wp_add_inline_script( 'test-example', 'console.log("before");', 'before' ) );
+ wp_enqueue_script( 'test-example', 'example.com', array(), null );
+ $this->assertTrue( wp_add_inline_script( 'test-example', 'console.log("before");', 'before' ) );
+ }
+
+ /**
+ * @ticket 14853
+ */
+ function test_wp_add_inline_script_unknown_handle() {
+ $this->assertFalse( wp_add_inline_script( 'test-invalid', 'console.log("before");', 'before' ) );
+ $this->assertEquals( '', get_echo( 'wp_print_scripts' ) );
+ }
+
+ /**
+ * @ticket 14853
+ */
+ function test_wp_add_inline_script_before() {
+ wp_enqueue_script( 'test-example', 'example.com', array(), null );
+ wp_add_inline_script( 'test-example', 'console.log("before");', 'before' );
+
+ $expected = "\n";
+ $expected .= "\n";
+
+ $this->assertEquals( $expected, get_echo( 'wp_print_scripts' ) );
+ }
+
+ /**
+ * @ticket 14853
+ */
+ function test_wp_add_inline_script_after() {
+ wp_enqueue_script( 'test-example', 'example.com', array(), null );
+ wp_add_inline_script( 'test-example', 'console.log("after");' );
+
+ $expected = "\n";
+ $expected .= "\n";
+
+ $this->assertEquals( $expected, get_echo( 'wp_print_scripts' ) );
+ }
+
+ /**
+ * @ticket 14853
+ */
+ function test_wp_add_inline_script_before_and_after() {
+ wp_enqueue_script( 'test-example', 'example.com', array(), null );
+ wp_add_inline_script( 'test-example', 'console.log("before");', 'before' );
+ wp_add_inline_script( 'test-example', 'console.log("after");' );
+
+ $expected = "\n";
+ $expected .= "\n";
+ $expected .= "\n";
+
+ $this->assertEquals( $expected, get_echo( 'wp_print_scripts' ) );
+ }
+
+ /**
+ * @ticket 14853
+ */
+ function test_wp_add_inline_script_multiple() {
+ wp_enqueue_script( 'test-example', 'example.com', array(), null );
+ wp_add_inline_script( 'test-example', 'console.log("before");', 'before' );
+ wp_add_inline_script( 'test-example', 'console.log("before");', 'before' );
+ wp_add_inline_script( 'test-example', 'console.log("after");' );
+ wp_add_inline_script( 'test-example', 'console.log("after");' );
+
+ $expected = "\n";
+ $expected .= "\n";
+ $expected .= "\n";
+
+ $this->assertEquals( $expected, get_echo( 'wp_print_scripts' ) );
+ }
}