[php-maint] Bug#245934: marked as done (php4: array_walk() crashes)
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and subject line recursive array_walk ends with correct message
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From: Paul Slootman <paul at debian.org>
To: Debian Bug Tracking System <submit at bugs.debian.org>
Subject: php4: array_walk() crashes
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Date: Mon, 26 Apr 2004 11:28:06 +0200
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Package: php4
Version: 4:4.3.3-4
Severity: important
When trying to dump an array structure to a format suitable for
generating XML (there aren't any PHP modules for generating XML that I
could find, only for parsing XML), I found that php was crashing after I
had extended the array a bit.
I use array_walk() recursively, to a max depth of about 6.
Any self-respecting programming language should be able to handle that
:-) Below is a script that contains the core of what I was doing, and
that shows the crash. Note that that script is more suited to running
with the php4-cgi php4 executable (which also shows the problem).
I found some vague references that php4 doesn't support recursion,
however I can't find any evidence of this in the manual. If it indeed
doesn't support recursion, perhaps that should be told explicitly in the
array_walk() manual entry. The online annotated manual page actually has
plentiful user examples of recursion...
Paul Slootman
-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux wurtel 2.6.5-rc2 #1 Sat Mar 20 14:10:58 CET 2004 i686
Locale: LANG=C, LC_CTYPE=C
Versions of packages php4 depends on:
ii apache-common 1.3.29.0.1-3 Support files for all Apache webse
ii debconf 1.4.22 Debian configuration management sy
ii libbz2-1.0 1.0.2-1 A high-quality block-sorting file
ii libc6 2.3.2.ds1-11 GNU C Library: Shared libraries an
ii libdb4.1 4.1.25-10 Berkeley v4.1 Database Libraries [
ii libexpat1 1.95.6-6 XML parsing C library - runtime li
ii libmm13 1.3.0-1 Shared memory library - runtime
ii libpam0g 0.76-14.1 Pluggable Authentication Modules l
ii libpcre3 4.5-1.1 Perl 5 Compatible Regular Expressi
ii mime-support 3.23-1 MIME files 'mime.types' & 'mailcap
ii zlib1g 1:1.2.1-4 compression library - runtime
<?php
$order = array(
"DocID" => "1",
"DocDate" => date("d.m.y"),
"ReSubmissionDate" => "",
"DocTyp" => "Stapelauftrag",
"CustID" => "00000",
"CustomerAddress" => array(
array(
"Name1" => 'name1',
"Name2" => 'name2',
"Name3" => "",
"City" => 'city',
"Street" => 'street',
"Postal" => 'postcode',
"IATA" => "90",
"Country" => "Deutschland",
"ShortName" => 'short',
"ContactKey" => "",
"EMail" => 'email at example.com',
)
),
"Text1" => "",
"Text2" => "",
"Wildcard1" => "",
"Wildcard2" => "",
"Dispatch" => "Paketdienst",
"Weight" => "0,0",
"BillingCustID" => "4300200000",
"ExtDocNr" => "00000000003",
"AnalysisLock" => "",
"PrintFlag" => "",
"FormType" => "0",
"Curr" => "EUR",
"ExChangeRate" => "1,0000",
"WIRRate" => "0",
"OneTimeCustomer" => array(
array(
"BankCode" => "",
"BankAccount" => ""
)
),
"Language" => "0",
"PriceGroup" => "1",
"PrFlag" => "0",
"SalesTaxKey" => "1",
"ProceedKey" => "0",
"CustDiscountGroup" => "0",
"Discount" => array(
array(
"FinDisc1" => "0,00",
"Disc1Base" => "145,72",
"Disc1Value" => "0,00",
"FinDisc2" => "0,00",
"Disc2Base" => "145,72",
"Disc2Value" => "0,00",
"FinDisc3" => "0,00",
"Disc3Base" => "145,72",
"Disc3Value" => "0,00",
"ValueSummary" => "0,00"
)
),
"Contact" => array(
array(
"Repr" => "999",
"Region" => "99",
"Commission" => "0,00",
"Agent" => "000000"
)
),
"Booking" => array(
array(
"CostUnit" => "0000000000",
"CostCentre" => "0000000000",
"AccountingArea"=> "01"
)
),
"InvoiceCycleKey" => "0",
"AnalysisKey" => "",
"OrderNumber" => "",
"OrderDate" => "",
"OrderCode" => "",
"DocItems" => array(
"DocItem" => array(
"PosType" => "1",
"ItemRef" => "ÚÚÚÚÚÚÚÚÚÚÚÚÚÚÚÚ1002",
"CRef" => "",
"Desc1" => "Präsentation Niederlande per",
"Desc2" => "",
"ArticleGroup" => "102",
"PosTypeVersion" => "E",
"Delivery" => array(
array(
"DelWeek" => "",
"DelDay" => "",
"DelTime" => ""
)
),
"PricePu" => "145,72",
"PriceUnit" => "0",
"PriceCalculation" => "0",
"ItemVal" => "145,72",
"InputKey" => "0",
"AveragePurchasePrice" => "0",
"Tax" => array(
array(
"TaxCode" => "00",
"TaxBra" => "000",
"TaxBraAccess" => "0",
"TaxSumIndex" => "0"
)
),
"DiscountArticle" => array(
array(
"DiscPC" => "0,00",
"DiscKey" => "1"
)
),
"ProceedKeyArticle" => "01",
"ActionKey" => "00",
"ContactCommissionArticle"=> "0,00",
"QuantDependantPriceKey"=> "",
"Quant" => "1",
"QuantUnit" => "",
"Meas" => array(
array(
"Count" => "1",
"Length" => "0,000",
"Width" => "0,000",
"Height" => "0,000"
)
),
"DecimalPlace" => "0",
"MultiplierQuant" => "1,000000",
"DifferingQuantUnit" => "",
"DecimalPlaceConversion"=> "0",
"WeightArticle" => array(
array(
"Amount" => "0",
"Unit" => "0"
)
),
"Wreath" => "0,000",
"Stock" => "1",
"CostUnitArticle" => "",
"SerialNbKey" => "0",
"TextComplementKey" => "0",
"PartsListPrintKey" => "",
"Prod" => "0000000000"
)
),
"Payment" => array(
"PaymentKey" => "0",
"ReminderKey" => "00",
"PayTerms" => array(
array(
"PayTerm" => "1",
"PayDays" => "000",
"CashDiscDays1" => "000",
"CashDiscDays2" => "000",
"CashDiscPer1" => "0,00",
"CashDiscPer2" => "0,00"
),
array(
"PayTerm" => "2",
"PayDays" => "000",
"CashDiscDays1" => "000",
"CashDiscDays2" => "000",
"CashDiscPer1" => "0,00",
"CashDiscPer2" => "0,00"
)
)
),
"NetAmountByTurnOverTax" => array(
array(
"TurnOverTaxFree" => "145,72",
"TurnOverTax1" => "0,00",
"TurnOverTax2" => "0,00",
"TurnOverTax3" => "0,00",
"TurnOverTax4" => "0,00",
"TurnOverTax5" => "0,00",
"TurnOverTax6" => "0,00",
"TurnOverTax7" => "0,00",
"TurnOverTax8" => "0,00"
),
),
"GrossAmount" => "145,72",
"ProceedAmount" => "145,72",
"NetAmountByPayTerm2" => array(
array(
"Sum0" => "0,00",
"Sum1" => "0,00",
"Sum2" => "0,00",
"Sum3" => "0,00",
"Sum4" => "0,00",
"Sum5" => "0,00",
"Sum6" => "0,00",
"Sum7" => "0,00",
"Sum8" => "0,00"
),
),
"TaxCodes" => array(
array(
"TaxCode1" => "0",
"TaxCode2" => "0",
"TaxCode3" => "0",
"TaxCode4" => "0",
"TaxCode5" => "0",
"TaxCode6" => "0",
"TaxCode7" => "0",
"TaxCode8" => "0"
)
)
);
$docs = array(
array(
"Version" => "1.0",
"ProducerName" => "xxxxxxxx",
"ProductName" => "Classic Line",
"xmlns" => "x-schema:CL310_DezABFSchema.XML"
),
"Company" => array(
array(
"MandateNumber" => "111",
"MandateName" => "xxx xxxxxxx-xxxxx xxxxxxx",
"MandateCurr" => "EUR"
),
),
"Doc" => $order
);
dump2xml($docs);
function dump2xml($array) {
// output of this goes through 2xml
array_walk(&$array, "gen_xml", "/Docs/");
}
function gen_xml($val, $key, $prefix)
{
global $xml_fd;
print "gen_xml(prefix=$prefix)\n";
if (is_array($val)) {
if (preg_match('/^\d+$/', $key)) {
if ($key == 1) {
print substr($prefix, 0, $x-1) . "\n";
}
array_walk(&$val, "gen_xml", "$prefix@");
}
else {
array_walk(&$val, "gen_xml", "$prefix$key/");
}
}
else {
if (strlen($val) > 0)
print "$prefix$key=$val\n";
else
print "$prefix$key\n";
}
print "gen_xml(prefix=$prefix) end\n";
}
?>
---------------------------------------
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>From ondrej at sury.org Wed Aug 10 03:17:43 2005
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Subject: recursive array_walk ends with correct message
From: Ondrej Sury <ondrej at sury.org>
To: 245934-done at bugs.debian.org
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Date: Wed, 10 Aug 2005 12:17:51 +0200
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version=2.60-bugs.debian.org_2005_01_02
php4 4.4.0-1 gives following error message when I try to run your
script:
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to
allocate 138060825 bytes) in /tmp/bug.php on line 252
Which is IMHO correct behaviour. Feel free to reopen this bug if you
have some arguments.
This bug still applies to php5 which gives Segmentation fault.
Ondrej.
--
Ondrej Sury <ondrej at sury.org>
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