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<?php |
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/** |
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* Utilities class |
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* |
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* @package Welcart |
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*/ |
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class WCUtils { |
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|
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/** |
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* Is blank. |
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* |
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* @param mixed $val Value. |
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* @param bool $strict Strict. |
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* @return bool |
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*/ |
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public static function is_blank( $val, $strict = false ) { |
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if ( is_null( $val ) ) { |
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return true; |
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} |
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|
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if ( ! is_scalar( $val ) && ! is_null( $val ) ) { |
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trigger_error( 'Value is not a scalar', E_USER_NOTICE ); |
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return true; |
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} |
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|
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if ( $strict ) { |
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$val = preg_replace( '/ /', '', $val ); |
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} |
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|
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$val = trim( $val ); |
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if ( strlen( $val ) > 0 ) { |
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return false; |
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} else { |
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return true; |
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} |
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} |
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|
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/** |
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* Is zero. |
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* |
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* @param mixed $val Value. |
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* @return bool |
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*/ |
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public static function is_zero( $val ) { |
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|
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if ( ! is_scalar( $val ) && ! is_null( $val ) ) { |
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trigger_error( 'Value is not a scalar', E_USER_NOTICE ); |
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return false; |
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} |
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|
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$val = trim( $val ); |
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if ( ! self::is_blank( $val ) && is_numeric( $val ) && 1 === strlen( $val ) && 0 === (int) $val ) { |
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return true; |
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} else { |
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return false; |
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} |
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} |
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} |
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|
