File "acf-helper-functions.php"
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MIME-type: text/x-php
Charset: utf-8
<?php
/*
* acf_is_empty
*
* Returns true if the value provided is considered "empty". Allows numbers such as 0.
*
* @date 6/7/16
* @since 5.4.0
*
* @param mixed $var The value to check.
* @return bool
*/
function acf_is_empty( $var ) {
return ( !$var && !is_numeric($var) );
}
/**
* acf_not_empty
*
* Returns true if the value provided is considered "not empty". Allows numbers such as 0.
*
* @date 15/7/19
* @since 5.8.1
*
* @param mixed $var The value to check.
* @return bool
*/
function acf_not_empty( $var ) {
return ( $var || is_numeric($var) );
}
/**
* acf_uniqid
*
* Returns a unique numeric based id.
*
* @date 9/1/19
* @since 5.7.10
*
* @param string $prefix The id prefix. Defaults to 'acf'.
* @return string
*/
function acf_uniqid( $prefix = 'acf' ) {
// Instantiate global counter.
global $acf_uniqid;
if( !isset($acf_uniqid) ) {
$acf_uniqid = 1;
}
// Return id.
return $prefix . '-' . $acf_uniqid++;
}
/**
* acf_merge_attributes
*
* Merges together two arrays but with extra functionality to append class names.
*
* @date 22/1/19
* @since 5.7.10
*
* @param array $array1 An array of attributes.
* @param array $array2 An array of attributes.
* @return array
*/
function acf_merge_attributes( $array1, $array2 ) {
// Merge together attributes.
$array3 = array_merge( $array1, $array2 );
// Append together special attributes.
foreach( array('class', 'style') as $key ) {
if( isset($array1[$key]) && isset($array2[$key]) ) {
$array3[$key] = trim($array1[$key]) . ' ' . trim($array2[$key]);
}
}
// Return.
return $array3;
}
/**
* acf_cache_key
*
* Returns a filtered cache key.
*
* @date 25/1/19
* @since 5.7.11
*
* @param string $key The cache key.
* @return string
*/
function acf_cache_key( $key = '' ) {
/**
* Filters the cache key.
*
* @date 25/1/19
* @since 5.7.11
*
* @param string $key The cache key.
* @param string $original_key The original cache key.
*/
return apply_filters( "acf/get_cache_key", $key, $key );
}
/**
* acf_request_args
*
* Returns an array of $_REQUEST values using the provided defaults.
*
* @date 28/2/19
* @since 5.7.13
*
* @param array $args An array of args.
* @return array
*/
function acf_request_args( $args = array() ) {
foreach( $args as $k => $v ) {
$args[ $k ] = isset($_REQUEST[ $k ]) ? $_REQUEST[ $k ] : $args[ $k ];
}
return $args;
}
// Register store.
acf_register_store( 'filters' );
/**
* acf_enable_filter
*
* Enables a filter with the given name.
*
* @date 14/7/16
* @since 5.4.0
*
* @param string name The modifer name.
* @return void
*/
function acf_enable_filter( $name = '' ) {
acf_get_store( 'filters' )->set( $name, true );
}
/**
* acf_disable_filter
*
* Disables a filter with the given name.
*
* @date 14/7/16
* @since 5.4.0
*
* @param string name The modifer name.
* @return void
*/
function acf_disable_filter( $name = '' ) {
acf_get_store( 'filters' )->set( $name, false );
}
/**
* acf_is_filter_enabled
*
* Returns the state of a filter for the given name.
*
* @date 14/7/16
* @since 5.4.0
*
* @param string name The modifer name.
* @return array
*/
function acf_is_filter_enabled( $name = '' ) {
return acf_get_store( 'filters' )->get( $name );
}
/**
* acf_get_filters
*
* Returns an array of filters in their current state.
*
* @date 14/7/16
* @since 5.4.0
*
* @param void
* @return array
*/
function acf_get_filters() {
return acf_get_store( 'filters' )->get();
}
/**
* acf_set_filters
*
* Sets an array of filter states.
*
* @date 14/7/16
* @since 5.4.0
*
* @param array $filters An Array of modifers
* @return array
*/
function acf_set_filters( $filters = array() ) {
acf_get_store( 'filters' )->set( $filters );
}
/**
* acf_disable_filters
*
* Disables all filters and returns the previous state.
*
* @date 14/7/16
* @since 5.4.0
*
* @param void
* @return array
*/
function acf_disable_filters() {
// Get state.
$prev_state = acf_get_filters();
// Set all modifers as false.
acf_set_filters( array_map('__return_false', $prev_state) );
// Return prev state.
return $prev_state;
}
/**
* acf_enable_filters
*
* Enables all or an array of specific filters and returns the previous state.
*
* @date 14/7/16
* @since 5.4.0
*
* @param array $filters An Array of modifers
* @return array
*/
function acf_enable_filters( $filters = array() ) {
// Get state.
$prev_state = acf_get_filters();
// Allow specific filters to be enabled.
if( $filters ) {
acf_set_filters( $filters );
// Set all modifers as true.
} else {
acf_set_filters( array_map('__return_true', $prev_state) );
}
// Return prev state.
return $prev_state;
}
/**
* acf_idval
*
* Parses the provided value for an ID.
*
* @date 29/3/19
* @since 5.7.14
*
* @param mixed $value A value to parse.
* @return int
*/
function acf_idval( $value ) {
// Check if value is numeric.
if( is_numeric($value) ) {
return (int) $value;
// Check if value is array.
} elseif( is_array($value) ) {
return (int) isset($value['ID']) ? $value['ID'] : 0;
// Check if value is object.
} elseif( is_object($value) ) {
return (int) isset($value->ID) ? $value->ID : 0;
}
// Return default.
return 0;
}
/**
* acf_maybe_idval
*
* Checks value for potential id value.
*
* @date 6/4/19
* @since 5.7.14
*
* @param mixed $value A value to parse.
* @return mixed
*/
function acf_maybe_idval( $value ) {
if( $id = acf_idval( $value ) ) {
return $id;
}
return $value;
}
/**
* acf_numericval
*
* Casts the provided value as eiter an int or float using a simple hack.
*
* @date 11/4/19
* @since 5.7.14
*
* @param mixed $value A value to parse.
* @return (int|float)
*/
function acf_numval( $value ) {
return ( intval($value) == floatval($value) ) ? intval($value) : floatval($value);
}
/**
* acf_idify
*
* Returns an id attribute friendly string.
*
* @date 24/12/17
* @since 5.6.5
*
* @param string $str The string to convert.
* @return string
*/
function acf_idify( $str = '' ) {
return str_replace(array('][', '[', ']'), array('-', '-', ''), strtolower($str));
}
/**
* acf_slugify
*
* Returns a slug friendly string.
*
* @date 24/12/17
* @since 5.6.5
*
* @param string $str The string to convert.
* @return string
*/
function acf_slugify( $str = '' ) {
return str_replace(array('_', '/', ' '), '-', strtolower($str));
}
/**
* acf_punctify
*
* Returns a string with correct full stop puctuation.
*
* @date 12/7/19
* @since 5.8.2
*
* @param string $str The string to format.
* @return string
*/
function acf_punctify( $str = '' ) {
return trim($str, '.') . '.';
}
/**
* acf_did
*
* Returns true if ACF already did an event.
*
* @date 30/8/19
* @since 5.8.1
*
* @param string $name The name of the event.
* @return bool
*/
function acf_did( $name ) {
// Return true if already did the event (preventing event).
if( acf_get_data("acf_did_$name") ) {
return true;
// Otherwise, update store and return false (alowing event).
} else {
acf_set_data("acf_did_$name", true);
return false;
}
}