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<?php $strings = [ 'if (blah === blah) do something', 'if (foo === foo) do something', 'if (bah === bah) { do something }', 'if (bar === bar) {do something}' ]; foreach ($strings as $string) { var_export(preg_match('~if\s*\(.*?\)\s*(\{)?~', $string, $m) ? $m : ''); echo "\nHas curly brace: " , isset($m[1]) ? 'Yes' : 'No'; echo "\n---\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => 'if (blah === blah) ', ) Has curly brace: No --- array ( 0 => 'if (foo === foo) ', ) Has curly brace: No --- array ( 0 => 'if (bah === bah) {', 1 => '{', ) Has curly brace: Yes --- array ( 0 => 'if (bar === bar) {', 1 => '{', ) Has curly brace: Yes ---

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