Online PHP editor | output for 9sgAf

@ 2021-12-10T21:12:51Z

<?php
function esc_attr( $string ) {
    return $string;
}
function sanitize_key( $key ) {
    return $key;
}

function test( $choices ) {
    foreach( $choices as $key => $value ) {
        if ( is_integer( $key ) ) {
            $field_name = "field[$key]";
        } elseif ( is_string( $key ) ) {
            $field_name = sprintf( 'field[%s]', sanitize_key( $key ) );
        } else {
            // may want to throw an error here.
        }
    	
    	printf(
    		'<input name="%s" value="1"/>',
    		esc_attr( $field_name )
    	);
    	echo "\n";
    }
}

echo "An indexed array\n";
$choices = array( 'Red', 'Blue', 'Green' );
test( $choices );

echo "\n\nAssociative array\n";
$choices = array( 'red' => 'Red', 'blue' => 'Blue', 'green' => 'Green' );
test( $choices );

Output for 7.3.13 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: An indexed array <input name="field[0]" value="1"/> <input name="field[1]" value="1"/> <input name="field[2]" value="1"/> Associative array <input name="field[red]" value="1"/> <input name="field[blue]" value="1"/> <input name="field[green]" value="1"/>
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 An indexed array <input name="field[0]" value="1"/> <input name="field[1]" value="1"/> <input name="field[2]" value="1"/> Associative array <input name="field[red]" value="1"/> <input name="field[blue]" value="1"/> <input name="field[green]" value="1"/>

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