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88c99afdac
There is no great difference between the old and new code for text encodings which either 1) use a fixed number of bytes per codepoint or 2) for which we have an 'mblen' table which enables us to find the length of a multi-byte character using a table lookup indexed by the first byte value. The big difference is for other text encodings, where we have to actually decode the string to split it. For such text encodings, such as ISO-2022-JP and UTF-16, I measured a speedup of 50%-120% over the previous implementation.
59 lines
1.9 KiB
PHP
59 lines
1.9 KiB
PHP
--TEST--
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mb_str_split() error conditions
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--EXTENSIONS--
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mbstring
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--FILE--
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<?php
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$string = "日本"; /* 2 chars */
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// Invalid split length
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try {
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mb_str_split($string, 0);
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} catch (\ValueError $e) {
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echo $e->getMessage() . \PHP_EOL;
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}
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try {
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mb_str_split($string, -5);
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} catch (\ValueError $e) {
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echo $e->getMessage() . \PHP_EOL;
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}
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//Invalid Encoding
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try {
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mb_str_split($string, 1, "BAD_ENCODING");
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} catch (\ValueError $e) {
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echo $e->getMessage() . \PHP_EOL;
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}
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// For UTF-8, error markers are not inserted
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echo "== INVALID UTF-8 ==\n";
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$array = mb_str_split("abc\xFFabc", 2, "UTF-8");
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echo "[", implode(', ', array_map('bin2hex', $array)), "]\n";
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// For most other encodings, they are
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echo "== INVALID HZ ==\n";
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// The last string emitted by mb_str_split will include '?' as an error marker,
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// since ά cannot be represented in HZ
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$array = mb_str_split(mb_convert_encoding("ελληνικά", "HZ", "UTF-8"), 2, "HZ");
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echo "[", implode(', ', array_map('bin2hex', $array)), "]\n";
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// HTML entity error markers
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mb_substitute_character("entity");
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echo "== INVALID HZ IN 'ENTITY' ERROR OUTPUT MODE ==\n";
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// The output here will actually include an HTML entity #x3AC;
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// It will be split into segments of 2 characters each by mb_str_split
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$array = mb_str_split(mb_convert_encoding("ελληνικά", "HZ", "UTF-8"), 2, "HZ");
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echo "[", implode(', ', array_map('bin2hex', $array)), "]\n";
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?>
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--EXPECT--
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mb_str_split(): Argument #2 ($length) must be greater than 0
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mb_str_split(): Argument #2 ($length) must be greater than 0
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mb_str_split(): Argument #3 ($encoding) must be a valid encoding, "BAD_ENCODING" given
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== INVALID UTF-8 ==
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[6162, 63ff, 6162, 63]
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== INVALID HZ ==
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[7e7b2645264b7e7d, 7e7b264b26477e7d, 7e7b264d26497e7d, 7e7b264a7e7d3f]
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== INVALID HZ IN 'ENTITY' ERROR OUTPUT MODE ==
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[7e7b2645264b7e7d, 7e7b264b26477e7d, 7e7b264d26497e7d, 7e7b264a7e7d26, 2378, 3341, 433b]
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