PHPTaqwimprefer-single-quotesfixable
Ensure that double quotes are converted to single quotes where possible
Examples
- Examples of correct code for this rule using default options
Echo, variables, function calls, arrays and list
php
<?php
$string = 'This is a string';
$concat = "This is a string with a $string";
$inner_single = "This is a string with a 'single quote'";
$empty_string = '';
echo strlen('Hello world!');
echo str_word_count('Hello world!');
echo strpos('Hello world!', 'world');
echo 'Hello world!';
echo 'First character of this string is: ' . $string[0];
echo 'Multiple strings' . ' concatenated' . ' together';
echo 'Multiple echo statements', ' concatenated', ' together';
echo 'A string
that spans
multiple lines';
$array = array(
'key' => 'value',
'key2' => 'value2',
'key3' => 'value3',
);
$nested_array = array(
'key' => 'value',
'key2' => 'value2',
'key3' => array(
'key' => 'value',
'key2' => 'value2',
'key3' => 'value3',
),
);
list('key' => $key, 'key2' => $key2, 'key3' => $key3) = $array;
$object->callMethod('string', 'string2', 'string3');- Examples of incorrect code for this rule using default options
Echo, variables, function calls, arrays and list
php
<?php
$string = "This is a string";
$concat = "This is a string concatenated with" . "another string";
$empty_string = "";
echo strlen("Hello world!");
echo str_word_count("Hello world!");
echo strpos("Hello world!", "world");
echo "Hello world!";
echo "First character of this string is: " . $string[0];
echo "Multiple strings" . " concatenated" . " together";
echo "Multiple echo statements", " concatenated", " together";
echo "A string
that spans
multiple lines";
$array = array(
"key" => "value",
"key2" => "value2",
"key3" => "value3",
);
$nested_array = array(
"key" => "value",
"key2" => "value2",
"key3" => array(
"key" => "value",
"key2" => "value2",
"key3" => "value3",
),
);
list("key" => $key, "key2" => $key2, "key3" => $key3) = $array;
$object->callMethod("string", "string2", "string3");