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<?php
defined( 'WPINC' ) || die; // Do not load directly.
/**
* Array utilities
*/
class Tribe__Utils__Array {
/**
* Set key/value within an array, can set a key nested inside of a multidimensional array.
*
* Example: set( $a, [ 0, 1, 2 ], 'hi' ) sets $a[0][1][2] = 'hi' and returns $a.
*
* @param mixed $array The array containing the key this sets.
* @param string|array $key To set a key nested multiple levels deep pass an array
* specifying each key in order as a value.
* Example: array( 'lvl1', 'lvl2', 'lvl3' );
* @param mixed $value The value.
*
* @return array Full array with the key set to the specified value.
*/
public static function set( array $array, $key, $value ) {
// Convert strings and such to array.
$key = (array) $key;
// Setup a pointer that we can point to the key specified.
$key_pointer = &$array;
// Iterate through every key, setting the pointer one level deeper each time.
foreach ( $key as $i ) {
// Ensure current array depth can have children set.
if ( ! is_array( $key_pointer ) ) {
// $key_pointer is set but is not an array. Converting it to an array
// would likely lead to unexpected problems for whatever first set it.
$error = sprintf(
'Attempted to set $array[%1$s] but %2$s is already set and is not an array.',
implode( $key, '][' ),
$i
);
_doing_it_wrong( __FUNCTION__, esc_html( $error ), '4.3' );
break;
} elseif ( ! isset( $key_pointer[ $i ] ) ) {
$key_pointer[ $i ] = array();
}
// Dive one level deeper into the nested array.
$key_pointer = &$key_pointer[ $i ];
}
// Set the value for the specified key
$key_pointer = $value;
return $array;
}
/**
* Find a value inside of an array or object, including one nested a few levels deep.
*
* Example: get( $a, [ 0, 1, 2 ] ) returns the value of $a[0][1][2] or the default.
*
* @param array $variable Array or object to search within.
* @param array $indexes Specify each nested index in order.
* Example: array( 'lvl1', 'lvl2' );
* @param mixed $default Default value if the search finds nothing.
*
* @return mixed The value of the specified index or the default if not found.
*/
public static function get( $variable, $indexes, $default = null ) {
if ( is_object( $variable ) ) {
$variable = (array) $variable;
}
if ( ! is_array( $variable ) ) {
return $default;
}
foreach ( (array) $indexes as $index ) {
if ( ! is_array( $variable ) || ! isset( $variable[ $index ] ) ) {
$variable = $default;
break;
}
$variable = $variable[ $index ];
}
return $variable;
}
/**
* Behaves exactly like the native strpos(), but accepts an array of needles.
*
* @see strpos()
*
* @param string $haystack String to search in.
* @param array|string $needles Strings to search for.
* @param int $offset Starting position of search.
*
* @return false|int Integer position of first needle occurrence.
*/
public static function strpos( $haystack, $needles, $offset = 0 ) {
$needles = (array) $needles;
foreach ( $needles as $i ) {
$search = strpos( $haystack, $i, $offset );
if ( false !== $search ) {
return $search;
}
}
return false;
}
}
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